Home / 487,276.43-672,442.97-272,416.50

Finding the Fourth Proportional to 487,276.43, 672,442.97 and 272,416.50

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Solution

The fourth proportional to 487,276.43, 672,442.97 and 272,416.50 is: 375,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,276.43 : 672,442.97 = 272,416.50 : x
  2. Step 2: Convert to fraction form
    487,276.43/672,442.97 = 272,416.50/x
  3. Step 3: Cross multiply
    487,276.43x = 672,442.97 × 272,416.50
  4. Step 4: Simplify right side
    487,276.43x = 183,184,558,974.92
  5. Step 5: Solve for x
    x = 183,184,558,974.92/487,276.43
  6. Step 6: Final answer
    x = 375,935.61

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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.