Home / 1,391,502.45-2,087,173.71-826,472.58

Finding the Fourth Proportional to 1,391,502.45, 2,087,173.71 and 826,472.58

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Solution

The fourth proportional to 1,391,502.45, 2,087,173.71 and 826,472.58 is: 1,239,661.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,502.45 : 2,087,173.71 = 826,472.58 : x
  2. Step 2: Convert to fraction form
    1,391,502.45/2,087,173.71 = 826,472.58/x
  3. Step 3: Cross multiply
    1,391,502.45x = 2,087,173.71 × 826,472.58
  4. Step 4: Simplify right side
    1,391,502.45x = 1,724,991,841,011.87
  5. Step 5: Solve for x
    x = 1,724,991,841,011.87/1,391,502.45
  6. Step 6: Final answer
    x = 1,239,661.38

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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.