Home / 1,320,002.40-1,980,003.60-900,098.40

Finding the Fourth Proportional to 1,320,002.40, 1,980,003.60 and 900,098.40

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Solution

The fourth proportional to 1,320,002.40, 1,980,003.60 and 900,098.40 is: 1,350,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,002.40 : 1,980,003.60 = 900,098.40 : x
  2. Step 2: Convert to fraction form
    1,320,002.40/1,980,003.60 = 900,098.40/x
  3. Step 3: Cross multiply
    1,320,002.40x = 1,980,003.60 × 900,098.40
  4. Step 4: Simplify right side
    1,320,002.40x = 1,782,198,072,354.24
  5. Step 5: Solve for x
    x = 1,782,198,072,354.24/1,320,002.40
  6. Step 6: Final answer
    x = 1,350,147.60

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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.