Home / 887,504.80-1,331,451.60-438,440.80

Finding the Fourth Proportional to 887,504.80, 1,331,451.60 and 438,440.80

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Solution

The fourth proportional to 887,504.80, 1,331,451.60 and 438,440.80 is: 657,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,504.80 : 1,331,451.60 = 438,440.80 : x
  2. Step 2: Convert to fraction form
    887,504.80/1,331,451.60 = 438,440.80/x
  3. Step 3: Cross multiply
    887,504.80x = 1,331,451.60 × 438,440.80
  4. Step 4: Simplify right side
    887,504.80x = 583,762,704,665.28
  5. Step 5: Solve for x
    x = 583,762,704,665.28/887,504.80
  6. Step 6: Final answer
    x = 657,757.24

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Double scale
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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.