Home / 684,748.20-1,027,122.30-517,442.70

Finding the Fourth Proportional to 684,748.20, 1,027,122.30 and 517,442.70

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Solution

The fourth proportional to 684,748.20, 1,027,122.30 and 517,442.70 is: 776,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,748.20 : 1,027,122.30 = 517,442.70 : x
  2. Step 2: Convert to fraction form
    684,748.20/1,027,122.30 = 517,442.70/x
  3. Step 3: Cross multiply
    684,748.20x = 1,027,122.30 × 517,442.70
  4. Step 4: Simplify right side
    684,748.20x = 531,476,936,142.21
  5. Step 5: Solve for x
    x = 531,476,936,142.21/684,748.20
  6. Step 6: Final answer
    x = 776,164.05

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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.