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Finding the Fourth Proportional to 577,981.80, 867,123.90 and 223,007.40

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Solution

The fourth proportional to 577,981.80, 867,123.90 and 223,007.40 is: 334,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,981.80 : 867,123.90 = 223,007.40 : x
  2. Step 2: Convert to fraction form
    577,981.80/867,123.90 = 223,007.40/x
  3. Step 3: Cross multiply
    577,981.80x = 867,123.90 × 223,007.40
  4. Step 4: Simplify right side
    577,981.80x = 193,375,046,416.86
  5. Step 5: Solve for x
    x = 193,375,046,416.86/577,981.80
  6. Step 6: Final answer
    x = 334,569.44

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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.