Home / 765,642.11-1,056,586.10-426,190.55

Finding the Fourth Proportional to 765,642.11, 1,056,586.10 and 426,190.55

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Solution

The fourth proportional to 765,642.11, 1,056,586.10 and 426,190.55 is: 588,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,642.11 : 1,056,586.10 = 426,190.55 : x
  2. Step 2: Convert to fraction form
    765,642.11/1,056,586.10 = 426,190.55/x
  3. Step 3: Cross multiply
    765,642.11x = 1,056,586.10 × 426,190.55
  4. Step 4: Simplify right side
    765,642.11x = 450,307,003,667.47
  5. Step 5: Solve for x
    x = 450,307,003,667.47/765,642.11
  6. Step 6: Final answer
    x = 588,142.95

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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.