Home / 721,439.61-1,082,148.46-248,129.07

Finding the Fourth Proportional to 721,439.61, 1,082,148.46 and 248,129.07

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Solution

The fourth proportional to 721,439.61, 1,082,148.46 and 248,129.07 is: 372,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,439.61 : 1,082,148.46 = 248,129.07 : x
  2. Step 2: Convert to fraction form
    721,439.61/1,082,148.46 = 248,129.07/x
  3. Step 3: Cross multiply
    721,439.61x = 1,082,148.46 × 248,129.07
  4. Step 4: Simplify right side
    721,439.61x = 268,512,490,981.73
  5. Step 5: Solve for x
    x = 268,512,490,981.73/721,439.61
  6. Step 6: Final answer
    x = 372,189.84

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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.