Home / 1,240,472.81-1,861,082.90-387,510.01

Finding the Fourth Proportional to 1,240,472.81, 1,861,082.90 and 387,510.01

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Solution

The fourth proportional to 1,240,472.81, 1,861,082.90 and 387,510.01 is: 581,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,472.81 : 1,861,082.90 = 387,510.01 : x
  2. Step 2: Convert to fraction form
    1,240,472.81/1,861,082.90 = 387,510.01/x
  3. Step 3: Cross multiply
    1,240,472.81x = 1,861,082.90 × 387,510.01
  4. Step 4: Simplify right side
    1,240,472.81x = 721,188,248,052.73
  5. Step 5: Solve for x
    x = 721,188,248,052.73/1,240,472.81
  6. Step 6: Final answer
    x = 581,381.74

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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.