Home / 729,216.51-1,006,318.98-402,529.72

Finding the Fourth Proportional to 729,216.51, 1,006,318.98 and 402,529.72

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Solution

The fourth proportional to 729,216.51, 1,006,318.98 and 402,529.72 is: 555,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,216.51 : 1,006,318.98 = 402,529.72 : x
  2. Step 2: Convert to fraction form
    729,216.51/1,006,318.98 = 402,529.72/x
  3. Step 3: Cross multiply
    729,216.51x = 1,006,318.98 × 402,529.72
  4. Step 4: Simplify right side
    729,216.51x = 405,073,290,205.84
  5. Step 5: Solve for x
    x = 405,073,290,205.84/729,216.51
  6. Step 6: Final answer
    x = 555,491.12

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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.