Home / 487,008.16-672,070.10-272,148.20

Finding the Fourth Proportional to 487,008.16, 672,070.10 and 272,148.20

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Solution

The fourth proportional to 487,008.16, 672,070.10 and 272,148.20 is: 375,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,008.16 : 672,070.10 = 272,148.20 : x
  2. Step 2: Convert to fraction form
    487,008.16/672,070.10 = 272,148.20/x
  3. Step 3: Cross multiply
    487,008.16x = 672,070.10 × 272,148.20
  4. Step 4: Simplify right side
    487,008.16x = 182,902,665,787.99
  5. Step 5: Solve for x
    x = 182,902,665,787.99/487,008.16
  6. Step 6: Final answer
    x = 375,563.86

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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.