Home / 771,433.60-1,156,972.20-291,712.72

Finding the Fourth Proportional to 771,433.60, 1,156,972.20 and 291,712.72

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Solution

The fourth proportional to 771,433.60, 1,156,972.20 and 291,712.72 is: 437,501.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,433.60 : 1,156,972.20 = 291,712.72 : x
  2. Step 2: Convert to fraction form
    771,433.60/1,156,972.20 = 291,712.72/x
  3. Step 3: Cross multiply
    771,433.60x = 1,156,972.20 × 291,712.72
  4. Step 4: Simplify right side
    771,433.60x = 337,503,507,426.38
  5. Step 5: Solve for x
    x = 337,503,507,426.38/771,433.60
  6. Step 6: Final answer
    x = 437,501.69

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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.