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Finding the Fourth Proportional to 487,711.28, 673,271.66 and 366,898.56

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Solution

The fourth proportional to 487,711.28, 673,271.66 and 366,898.56 is: 506,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,711.28 : 673,271.66 = 366,898.56 : x
  2. Step 2: Convert to fraction form
    487,711.28/673,271.66 = 366,898.56/x
  3. Step 3: Cross multiply
    487,711.28x = 673,271.66 × 366,898.56
  4. Step 4: Simplify right side
    487,711.28x = 247,022,402,542.81
  5. Step 5: Solve for x
    x = 247,022,402,542.81/487,711.28
  6. Step 6: Final answer
    x = 506,493.11

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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.