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Finding the Fourth Proportional to 898,340.40, 1,347,510.60 and 449,130.60

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Solution

The fourth proportional to 898,340.40, 1,347,510.60 and 449,130.60 is: 673,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,340.40 : 1,347,510.60 = 449,130.60 : x
  2. Step 2: Convert to fraction form
    898,340.40/1,347,510.60 = 449,130.60/x
  3. Step 3: Cross multiply
    898,340.40x = 1,347,510.60 × 449,130.60
  4. Step 4: Simplify right side
    898,340.40x = 605,208,244,284.36
  5. Step 5: Solve for x
    x = 605,208,244,284.36/898,340.40
  6. Step 6: Final answer
    x = 673,695.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.