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Finding the Fourth Proportional to 439,877.55, 659,816.33 and 400,511.55

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Solution

The fourth proportional to 439,877.55, 659,816.33 and 400,511.55 is: 600,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,877.55 : 659,816.33 = 400,511.55 : x
  2. Step 2: Convert to fraction form
    439,877.55/659,816.33 = 400,511.55/x
  3. Step 3: Cross multiply
    439,877.55x = 659,816.33 × 400,511.55
  4. Step 4: Simplify right side
    439,877.55x = 264,264,059,041.05
  5. Step 5: Solve for x
    x = 264,264,059,041.05/439,877.55
  6. Step 6: Final answer
    x = 600,767.33

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Similar ratio
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1.5x scale

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.