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Finding the Fourth Proportional to 650,309.40, 977,796.90 and 547,666.20

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Solution

The fourth proportional to 650,309.40, 977,796.90 and 547,666.20 is: 823,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,309.40 : 977,796.90 = 547,666.20 : x
  2. Step 2: Convert to fraction form
    650,309.40/977,796.90 = 547,666.20/x
  3. Step 3: Cross multiply
    650,309.40x = 977,796.90 × 547,666.20
  4. Step 4: Simplify right side
    650,309.40x = 535,506,312,594.78
  5. Step 5: Solve for x
    x = 535,506,312,594.78/650,309.40
  6. Step 6: Final answer
    x = 823,463.90

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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.