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Finding the Fourth Proportional to 731,453.16, 1,008,999.08 and 425,495.08

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Solution

The fourth proportional to 731,453.16, 1,008,999.08 and 425,495.08 is: 586,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,453.16 : 1,008,999.08 = 425,495.08 : x
  2. Step 2: Convert to fraction form
    731,453.16/1,008,999.08 = 425,495.08/x
  3. Step 3: Cross multiply
    731,453.16x = 1,008,999.08 × 425,495.08
  4. Step 4: Simplify right side
    731,453.16x = 429,324,144,264.53
  5. Step 5: Solve for x
    x = 429,324,144,264.53/731,453.16
  6. Step 6: Final answer
    x = 586,946.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.