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Finding the Fourth Proportional to 676,287.29, 933,116.28 and 400,505.87

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Solution

The fourth proportional to 676,287.29, 933,116.28 and 400,505.87 is: 552,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,287.29 : 933,116.28 = 400,505.87 : x
  2. Step 2: Convert to fraction form
    676,287.29/933,116.28 = 400,505.87/x
  3. Step 3: Cross multiply
    676,287.29x = 933,116.28 × 400,505.87
  4. Step 4: Simplify right side
    676,287.29x = 373,718,547,532.56
  5. Step 5: Solve for x
    x = 373,718,547,532.56/676,287.29
  6. Step 6: Final answer
    x = 552,603.24

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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.