Home / 767,449.20-1,152,210.60-487,513.20

Finding the Fourth Proportional to 767,449.20, 1,152,210.60 and 487,513.20

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Solution

The fourth proportional to 767,449.20, 1,152,210.60 and 487,513.20 is: 731,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,449.20 : 1,152,210.60 = 487,513.20 : x
  2. Step 2: Convert to fraction form
    767,449.20/1,152,210.60 = 487,513.20/x
  3. Step 3: Cross multiply
    767,449.20x = 1,152,210.60 × 487,513.20
  4. Step 4: Simplify right side
    767,449.20x = 561,717,876,679.92
  5. Step 5: Solve for x
    x = 561,717,876,679.92/767,449.20
  6. Step 6: Final answer
    x = 731,928.42

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Double scale
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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.