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Finding the Fourth Proportional to 487,765.56, 673,142.54 and 272,892.76

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Solution

The fourth proportional to 487,765.56, 673,142.54 and 272,892.76 is: 376,606.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,765.56 : 673,142.54 = 272,892.76 : x
  2. Step 2: Convert to fraction form
    487,765.56/673,142.54 = 272,892.76/x
  3. Step 3: Cross multiply
    487,765.56x = 673,142.54 × 272,892.76
  4. Step 4: Simplify right side
    487,765.56x = 183,695,725,614.01
  5. Step 5: Solve for x
    x = 183,695,725,614.01/487,765.56
  6. Step 6: Final answer
    x = 376,606.59

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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.