Home / 724,923.20-1,087,384.80-659,604.80

Finding the Fourth Proportional to 724,923.20, 1,087,384.80 and 659,604.80

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Solution

The fourth proportional to 724,923.20, 1,087,384.80 and 659,604.80 is: 989,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,923.20 : 1,087,384.80 = 659,604.80 : x
  2. Step 2: Convert to fraction form
    724,923.20/1,087,384.80 = 659,604.80/x
  3. Step 3: Cross multiply
    724,923.20x = 1,087,384.80 × 659,604.80
  4. Step 4: Simplify right side
    724,923.20x = 717,244,233,527.04
  5. Step 5: Solve for x
    x = 717,244,233,527.04/724,923.20
  6. Step 6: Final answer
    x = 989,407.20

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Double scale
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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.