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Finding the Fourth Proportional to 650,078.70, 974,964.96 and 365,890.20

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Solution

The fourth proportional to 650,078.70, 974,964.96 and 365,890.20 is: 548,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,078.70 : 974,964.96 = 365,890.20 : x
  2. Step 2: Convert to fraction form
    650,078.70/974,964.96 = 365,890.20/x
  3. Step 3: Cross multiply
    650,078.70x = 974,964.96 × 365,890.20
  4. Step 4: Simplify right side
    650,078.70x = 356,730,124,207.39
  5. Step 5: Solve for x
    x = 356,730,124,207.39/650,078.70
  6. Step 6: Final answer
    x = 548,749.13

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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.