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Finding the Fourth Proportional to 461,325.78, 636,387.84 and 400,760.46

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Solution

The fourth proportional to 461,325.78, 636,387.84 and 400,760.46 is: 552,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,325.78 : 636,387.84 = 400,760.46 : x
  2. Step 2: Convert to fraction form
    461,325.78/636,387.84 = 400,760.46/x
  3. Step 3: Cross multiply
    461,325.78x = 636,387.84 × 400,760.46
  4. Step 4: Simplify right side
    461,325.78x = 255,039,083,496.81
  5. Step 5: Solve for x
    x = 255,039,083,496.81/461,325.78
  6. Step 6: Final answer
    x = 552,839.43

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1.5x scale

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.