Home / 858,769.70-1,288,154.55-699,337.40

Finding the Fourth Proportional to 858,769.70, 1,288,154.55 and 699,337.40

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Solution

The fourth proportional to 858,769.70, 1,288,154.55 and 699,337.40 is: 1,049,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,769.70 : 1,288,154.55 = 699,337.40 : x
  2. Step 2: Convert to fraction form
    858,769.70/1,288,154.55 = 699,337.40/x
  3. Step 3: Cross multiply
    858,769.70x = 1,288,154.55 × 699,337.40
  4. Step 4: Simplify right side
    858,769.70x = 900,854,653,795.17
  5. Step 5: Solve for x
    x = 900,854,653,795.17/858,769.70
  6. Step 6: Final answer
    x = 1,049,006.10

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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.