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Finding the Fourth Proportional to 577,345.70, 864,378.30 and 545,925.80

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Solution

The fourth proportional to 577,345.70, 864,378.30 and 545,925.80 is: 817,337.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,345.70 : 864,378.30 = 545,925.80 : x
  2. Step 2: Convert to fraction form
    577,345.70/864,378.30 = 545,925.80/x
  3. Step 3: Cross multiply
    577,345.70x = 864,378.30 × 545,925.80
  4. Step 4: Simplify right side
    577,345.70x = 471,886,414,930.14
  5. Step 5: Solve for x
    x = 471,886,414,930.14/577,345.70
  6. Step 6: Final answer
    x = 817,337.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.