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Finding the Fourth Proportional to 567,338.10, 782,931.33 and 312,689.94

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Solution

The fourth proportional to 567,338.10, 782,931.33 and 312,689.94 is: 431,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,338.10 : 782,931.33 = 312,689.94 : x
  2. Step 2: Convert to fraction form
    567,338.10/782,931.33 = 312,689.94/x
  3. Step 3: Cross multiply
    567,338.10x = 782,931.33 × 312,689.94
  4. Step 4: Simplify right side
    567,338.10x = 244,814,750,601.82
  5. Step 5: Solve for x
    x = 244,814,750,601.82/567,338.10
  6. Step 6: Final answer
    x = 431,514.74

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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.