Home / 830,077.30-1,245,115.95-725,101.30

Finding the Fourth Proportional to 830,077.30, 1,245,115.95 and 725,101.30

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Solution

The fourth proportional to 830,077.30, 1,245,115.95 and 725,101.30 is: 1,087,651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,077.30 : 1,245,115.95 = 725,101.30 : x
  2. Step 2: Convert to fraction form
    830,077.30/1,245,115.95 = 725,101.30/x
  3. Step 3: Cross multiply
    830,077.30x = 1,245,115.95 × 725,101.30
  4. Step 4: Simplify right side
    830,077.30x = 902,835,193,995.74
  5. Step 5: Solve for x
    x = 902,835,193,995.74/830,077.30
  6. Step 6: Final answer
    x = 1,087,651.95

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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.