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Finding the Fourth Proportional to 574,501.29, 861,809.03 and 219,813.63

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Solution

The fourth proportional to 574,501.29, 861,809.03 and 219,813.63 is: 329,742.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,501.29 : 861,809.03 = 219,813.63 : x
  2. Step 2: Convert to fraction form
    574,501.29/861,809.03 = 219,813.63/x
  3. Step 3: Cross multiply
    574,501.29x = 861,809.03 × 219,813.63
  4. Step 4: Simplify right side
    574,501.29x = 189,437,371,251.08
  5. Step 5: Solve for x
    x = 189,437,371,251.08/574,501.29
  6. Step 6: Final answer
    x = 329,742.29

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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.