Home / 497,428.46-686,479.32-376,359.55

Finding the Fourth Proportional to 497,428.46, 686,479.32 and 376,359.55

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Solution

The fourth proportional to 497,428.46, 686,479.32 and 376,359.55 is: 519,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,428.46 : 686,479.32 = 376,359.55 : x
  2. Step 2: Convert to fraction form
    497,428.46/686,479.32 = 376,359.55/x
  3. Step 3: Cross multiply
    497,428.46x = 686,479.32 × 376,359.55
  4. Step 4: Simplify right side
    497,428.46x = 258,363,046,243.31
  5. Step 5: Solve for x
    x = 258,363,046,243.31/497,428.46
  6. Step 6: Final answer
    x = 519,397.40

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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.