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Finding the Fourth Proportional to 532,545.21, 799,214.52 and 390,756.87

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Solution

The fourth proportional to 532,545.21, 799,214.52 and 390,756.87 is: 586,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,545.21 : 799,214.52 = 390,756.87 : x
  2. Step 2: Convert to fraction form
    532,545.21/799,214.52 = 390,756.87/x
  3. Step 3: Cross multiply
    532,545.21x = 799,214.52 × 390,756.87
  4. Step 4: Simplify right side
    532,545.21x = 312,298,564,293.75
  5. Step 5: Solve for x
    x = 312,298,564,293.75/532,545.21
  6. Step 6: Final answer
    x = 586,426.39

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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.