Home / 729,446.31-1,006,633.41-407,153.61

Finding the Fourth Proportional to 729,446.31, 1,006,633.41 and 407,153.61

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Solution

The fourth proportional to 729,446.31, 1,006,633.41 and 407,153.61 is: 561,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,446.31 : 1,006,633.41 = 407,153.61 : x
  2. Step 2: Convert to fraction form
    729,446.31/1,006,633.41 = 407,153.61/x
  3. Step 3: Cross multiply
    729,446.31x = 1,006,633.41 × 407,153.61
  4. Step 4: Simplify right side
    729,446.31x = 409,854,426,828.11
  5. Step 5: Solve for x
    x = 409,854,426,828.11/729,446.31
  6. Step 6: Final answer
    x = 561,870.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.