Home / 990,174.40-1,485,261.60-654,251.20

Finding the Fourth Proportional to 990,174.40, 1,485,261.60 and 654,251.20

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Solution

The fourth proportional to 990,174.40, 1,485,261.60 and 654,251.20 is: 981,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,174.40 : 1,485,261.60 = 654,251.20 : x
  2. Step 2: Convert to fraction form
    990,174.40/1,485,261.60 = 654,251.20/x
  3. Step 3: Cross multiply
    990,174.40x = 1,485,261.60 × 654,251.20
  4. Step 4: Simplify right side
    990,174.40x = 971,734,184,113.92
  5. Step 5: Solve for x
    x = 971,734,184,113.92/990,174.40
  6. Step 6: Final answer
    x = 981,376.80

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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.