Home / 729,005.24-1,006,027.86-406,715.40

Finding the Fourth Proportional to 729,005.24, 1,006,027.86 and 406,715.40

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Solution

The fourth proportional to 729,005.24, 1,006,027.86 and 406,715.40 is: 561,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,005.24 : 1,006,027.86 = 406,715.40 : x
  2. Step 2: Convert to fraction form
    729,005.24/1,006,027.86 = 406,715.40/x
  3. Step 3: Cross multiply
    729,005.24x = 1,006,027.86 × 406,715.40
  4. Step 4: Simplify right side
    729,005.24x = 409,167,023,491.04
  5. Step 5: Solve for x
    x = 409,167,023,491.04/729,005.24
  6. Step 6: Final answer
    x = 561,267.61

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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.