Home / 779,200.20-1,168,800.30-497,190.60

Finding the Fourth Proportional to 779,200.20, 1,168,800.30 and 497,190.60

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Solution

The fourth proportional to 779,200.20, 1,168,800.30 and 497,190.60 is: 745,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,200.20 : 1,168,800.30 = 497,190.60 : x
  2. Step 2: Convert to fraction form
    779,200.20/1,168,800.30 = 497,190.60/x
  3. Step 3: Cross multiply
    779,200.20x = 1,168,800.30 × 497,190.60
  4. Step 4: Simplify right side
    779,200.20x = 581,116,522,437.18
  5. Step 5: Solve for x
    x = 581,116,522,437.18/779,200.20
  6. Step 6: Final answer
    x = 745,785.90

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Half scale
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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.