Home / 487,000.54-672,059.66-272,140.62

Finding the Fourth Proportional to 487,000.54, 672,059.66 and 272,140.62

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Solution

The fourth proportional to 487,000.54, 672,059.66 and 272,140.62 is: 375,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,000.54 : 672,059.66 = 272,140.62 : x
  2. Step 2: Convert to fraction form
    487,000.54/672,059.66 = 272,140.62/x
  3. Step 3: Cross multiply
    487,000.54x = 672,059.66 × 272,140.62
  4. Step 4: Simplify right side
    487,000.54x = 182,894,732,549.39
  5. Step 5: Solve for x
    x = 182,894,732,549.39/487,000.54
  6. Step 6: Final answer
    x = 375,553.45

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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.