Home / 765,438.62-1,056,434.82-443,344.82

Finding the Fourth Proportional to 765,438.62, 1,056,434.82 and 443,344.82

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Solution

The fourth proportional to 765,438.62, 1,056,434.82 and 443,344.82 is: 611,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,438.62 : 1,056,434.82 = 443,344.82 : x
  2. Step 2: Convert to fraction form
    765,438.62/1,056,434.82 = 443,344.82/x
  3. Step 3: Cross multiply
    765,438.62x = 1,056,434.82 × 443,344.82
  4. Step 4: Simplify right side
    765,438.62x = 468,364,905,114.63
  5. Step 5: Solve for x
    x = 468,364,905,114.63/765,438.62
  6. Step 6: Final answer
    x = 611,890.87

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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.