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Finding the Fourth Proportional to 650,230.40, 975,345.60 and 425,844.20

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Solution

The fourth proportional to 650,230.40, 975,345.60 and 425,844.20 is: 638,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,230.40 : 975,345.60 = 425,844.20 : x
  2. Step 2: Convert to fraction form
    650,230.40/975,345.60 = 425,844.20/x
  3. Step 3: Cross multiply
    650,230.40x = 975,345.60 × 425,844.20
  4. Step 4: Simplify right side
    650,230.40x = 415,345,266,755.52
  5. Step 5: Solve for x
    x = 415,345,266,755.52/650,230.40
  6. Step 6: Final answer
    x = 638,766.30

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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.