Home / 724,188.20-1,087,319.10-409,260.20

Finding the Fourth Proportional to 724,188.20, 1,087,319.10 and 409,260.20

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Solution

The fourth proportional to 724,188.20, 1,087,319.10 and 409,260.20 is: 614,476.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,188.20 : 1,087,319.10 = 409,260.20 : x
  2. Step 2: Convert to fraction form
    724,188.20/1,087,319.10 = 409,260.20/x
  3. Step 3: Cross multiply
    724,188.20x = 1,087,319.10 × 409,260.20
  4. Step 4: Simplify right side
    724,188.20x = 444,996,432,329.82
  5. Step 5: Solve for x
    x = 444,996,432,329.82/724,188.20
  6. Step 6: Final answer
    x = 614,476.23

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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.