Home / 729,522.81-1,006,564.19-427,658.49

Finding the Fourth Proportional to 729,522.81, 1,006,564.19 and 427,658.49

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Solution

The fourth proportional to 729,522.81, 1,006,564.19 and 427,658.49 is: 590,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,522.81 : 1,006,564.19 = 427,658.49 : x
  2. Step 2: Convert to fraction form
    729,522.81/1,006,564.19 = 427,658.49/x
  3. Step 3: Cross multiply
    729,522.81x = 1,006,564.19 × 427,658.49
  4. Step 4: Simplify right side
    729,522.81x = 430,465,719,445.18
  5. Step 5: Solve for x
    x = 430,465,719,445.18/729,522.81
  6. Step 6: Final answer
    x = 590,064.78

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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.