Home / 487,023.91-672,070.47-272,162.10

Finding the Fourth Proportional to 487,023.91, 672,070.47 and 272,162.10

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Solution

The fourth proportional to 487,023.91, 672,070.47 and 272,162.10 is: 375,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,023.91 : 672,070.47 = 272,162.10 : x
  2. Step 2: Convert to fraction form
    487,023.91/672,070.47 = 272,162.10/x
  3. Step 3: Cross multiply
    487,023.91x = 672,070.47 × 272,162.10
  4. Step 4: Simplify right side
    487,023.91x = 182,912,105,742.02
  5. Step 5: Solve for x
    x = 182,912,105,742.02/487,023.91
  6. Step 6: Final answer
    x = 375,571.10

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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.