Home / 486,527.83-729,790.02-131,541.78

Finding the Fourth Proportional to 486,527.83, 729,790.02 and 131,541.78

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Solution

The fourth proportional to 486,527.83, 729,790.02 and 131,541.78 is: 197,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,527.83 : 729,790.02 = 131,541.78 : x
  2. Step 2: Convert to fraction form
    486,527.83/729,790.02 = 131,541.78/x
  3. Step 3: Cross multiply
    486,527.83x = 729,790.02 × 131,541.78
  4. Step 4: Simplify right side
    486,527.83x = 95,997,878,257.04
  5. Step 5: Solve for x
    x = 95,997,878,257.04/486,527.83
  6. Step 6: Final answer
    x = 197,312.20

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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.