Home / 486,973.15-730,459.73-131,987.17

Finding the Fourth Proportional to 486,973.15, 730,459.73 and 131,987.17

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Solution

The fourth proportional to 486,973.15, 730,459.73 and 131,987.17 is: 197,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,973.15 : 730,459.73 = 131,987.17 : x
  2. Step 2: Convert to fraction form
    486,973.15/730,459.73 = 131,987.17/x
  3. Step 3: Cross multiply
    486,973.15x = 730,459.73 × 131,987.17
  4. Step 4: Simplify right side
    486,973.15x = 96,411,313,990.31
  5. Step 5: Solve for x
    x = 96,411,313,990.31/486,973.15
  6. Step 6: Final answer
    x = 197,980.76

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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.