Home / 425,929.18-639,616.88-284,682.13

Finding the Fourth Proportional to 425,929.18, 639,616.88 and 284,682.13

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Solution

The fourth proportional to 425,929.18, 639,616.88 and 284,682.13 is: 427,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,929.18 : 639,616.88 = 284,682.13 : x
  2. Step 2: Convert to fraction form
    425,929.18/639,616.88 = 284,682.13/x
  3. Step 3: Cross multiply
    425,929.18x = 639,616.88 × 284,682.13
  4. Step 4: Simplify right side
    425,929.18x = 182,087,491,160.86
  5. Step 5: Solve for x
    x = 182,087,491,160.86/425,929.18
  6. Step 6: Final answer
    x = 427,506.50

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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.