Home / 748,908.30-1,123,362.45-660,334.80

Finding the Fourth Proportional to 748,908.30, 1,123,362.45 and 660,334.80

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Solution

The fourth proportional to 748,908.30, 1,123,362.45 and 660,334.80 is: 990,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,908.30 : 1,123,362.45 = 660,334.80 : x
  2. Step 2: Convert to fraction form
    748,908.30/1,123,362.45 = 660,334.80/x
  3. Step 3: Cross multiply
    748,908.30x = 1,123,362.45 × 660,334.80
  4. Step 4: Simplify right side
    748,908.30x = 741,795,318,748.26
  5. Step 5: Solve for x
    x = 741,795,318,748.26/748,908.30
  6. Step 6: Final answer
    x = 990,502.20

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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.