Home / 812,264.66-1,218,002.27-407,282.88

Finding the Fourth Proportional to 812,264.66, 1,218,002.27 and 407,282.88

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Solution

The fourth proportional to 812,264.66, 1,218,002.27 and 407,282.88 is: 610,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,264.66 : 1,218,002.27 = 407,282.88 : x
  2. Step 2: Convert to fraction form
    812,264.66/1,218,002.27 = 407,282.88/x
  3. Step 3: Cross multiply
    812,264.66x = 1,218,002.27 × 407,282.88
  4. Step 4: Simplify right side
    812,264.66x = 496,071,474,903.23
  5. Step 5: Solve for x
    x = 496,071,474,903.23/812,264.66
  6. Step 6: Final answer
    x = 610,726.40

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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.