Home / 976,800.30-1,465,200.45-266,900.10

Finding the Fourth Proportional to 976,800.30, 1,465,200.45 and 266,900.10

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Solution

The fourth proportional to 976,800.30, 1,465,200.45 and 266,900.10 is: 400,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,800.30 : 1,465,200.45 = 266,900.10 : x
  2. Step 2: Convert to fraction form
    976,800.30/1,465,200.45 = 266,900.10/x
  3. Step 3: Cross multiply
    976,800.30x = 1,465,200.45 × 266,900.10
  4. Step 4: Simplify right side
    976,800.30x = 391,062,146,625.05
  5. Step 5: Solve for x
    x = 391,062,146,625.05/976,800.30
  6. Step 6: Final answer
    x = 400,350.15

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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.