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Finding the Fourth Proportional to 598,947.60, 898,421.40 and 299,474.40

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Solution

The fourth proportional to 598,947.60, 898,421.40 and 299,474.40 is: 449,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,947.60 : 898,421.40 = 299,474.40 : x
  2. Step 2: Convert to fraction form
    598,947.60/898,421.40 = 299,474.40/x
  3. Step 3: Cross multiply
    598,947.60x = 898,421.40 × 299,474.40
  4. Step 4: Simplify right side
    598,947.60x = 269,054,209,712.16
  5. Step 5: Solve for x
    x = 269,054,209,712.16/598,947.60
  6. Step 6: Final answer
    x = 449,211.60

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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.