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Finding the Fourth Proportional to 650,486.70, 975,730.05 and 413,999.10

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Solution

The fourth proportional to 650,486.70, 975,730.05 and 413,999.10 is: 620,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,486.70 : 975,730.05 = 413,999.10 : x
  2. Step 2: Convert to fraction form
    650,486.70/975,730.05 = 413,999.10/x
  3. Step 3: Cross multiply
    650,486.70x = 975,730.05 × 413,999.10
  4. Step 4: Simplify right side
    650,486.70x = 403,951,362,542.96
  5. Step 5: Solve for x
    x = 403,951,362,542.96/650,486.70
  6. Step 6: Final answer
    x = 620,998.65

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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.