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Finding the Fourth Proportional to 898,153.60, 1,347,230.40 and 299,134.30

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Solution

The fourth proportional to 898,153.60, 1,347,230.40 and 299,134.30 is: 448,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,153.60 : 1,347,230.40 = 299,134.30 : x
  2. Step 2: Convert to fraction form
    898,153.60/1,347,230.40 = 299,134.30/x
  3. Step 3: Cross multiply
    898,153.60x = 1,347,230.40 × 299,134.30
  4. Step 4: Simplify right side
    898,153.60x = 403,002,822,642.72
  5. Step 5: Solve for x
    x = 403,002,822,642.72/898,153.60
  6. Step 6: Final answer
    x = 448,701.45

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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.