Home / 659,130.60-987,918.30-492,724.20

Finding the Fourth Proportional to 659,130.60, 987,918.30 and 492,724.20

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Solution

The fourth proportional to 659,130.60, 987,918.30 and 492,724.20 is: 738,505.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,130.60 : 987,918.30 = 492,724.20 : x
  2. Step 2: Convert to fraction form
    659,130.60/987,918.30 = 492,724.20/x
  3. Step 3: Cross multiply
    659,130.60x = 987,918.30 × 492,724.20
  4. Step 4: Simplify right side
    659,130.60x = 486,771,254,032.86
  5. Step 5: Solve for x
    x = 486,771,254,032.86/659,130.60
  6. Step 6: Final answer
    x = 738,505.02

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Double scale
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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.