Home / 487,923.20-731,884.80-239,091.20

Finding the Fourth Proportional to 487,923.20, 731,884.80 and 239,091.20

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Solution

The fourth proportional to 487,923.20, 731,884.80 and 239,091.20 is: 358,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,923.20 : 731,884.80 = 239,091.20 : x
  2. Step 2: Convert to fraction form
    487,923.20/731,884.80 = 239,091.20/x
  3. Step 3: Cross multiply
    487,923.20x = 731,884.80 × 239,091.20
  4. Step 4: Simplify right side
    487,923.20x = 174,987,215,093.76
  5. Step 5: Solve for x
    x = 174,987,215,093.76/487,923.20
  6. Step 6: Final answer
    x = 358,636.80

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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.