Home / 859,491.04-1,288,872.04-409,691.56

Finding the Fourth Proportional to 859,491.04, 1,288,872.04 and 409,691.56

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Solution

The fourth proportional to 859,491.04, 1,288,872.04 and 409,691.56 is: 614,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,491.04 : 1,288,872.04 = 409,691.56 : x
  2. Step 2: Convert to fraction form
    859,491.04/1,288,872.04 = 409,691.56/x
  3. Step 3: Cross multiply
    859,491.04x = 1,288,872.04 × 409,691.56
  4. Step 4: Simplify right side
    859,491.04x = 528,039,996,707.98
  5. Step 5: Solve for x
    x = 528,039,996,707.98/859,491.04
  6. Step 6: Final answer
    x = 614,363.59

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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.