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Finding the Fourth Proportional to 532,399.62, 797,791.35 and 390,339.45

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Solution

The fourth proportional to 532,399.62, 797,791.35 and 390,339.45 is: 584,916.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,399.62 : 797,791.35 = 390,339.45 : x
  2. Step 2: Convert to fraction form
    532,399.62/797,791.35 = 390,339.45/x
  3. Step 3: Cross multiply
    532,399.62x = 797,791.35 × 390,339.45
  4. Step 4: Simplify right side
    532,399.62x = 311,409,436,773.76
  5. Step 5: Solve for x
    x = 311,409,436,773.76/532,399.62
  6. Step 6: Final answer
    x = 584,916.71

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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.