Home / 627,115.60-865,491.32-351,547.88

Finding the Fourth Proportional to 627,115.60, 865,491.32 and 351,547.88

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Solution

The fourth proportional to 627,115.60, 865,491.32 and 351,547.88 is: 485,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,115.60 : 865,491.32 = 351,547.88 : x
  2. Step 2: Convert to fraction form
    627,115.60/865,491.32 = 351,547.88/x
  3. Step 3: Cross multiply
    627,115.60x = 865,491.32 × 351,547.88
  4. Step 4: Simplify right side
    627,115.60x = 304,261,638,264.97
  5. Step 5: Solve for x
    x = 304,261,638,264.97/627,115.60
  6. Step 6: Final answer
    x = 485,176.32

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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.