Home / 726,488.20-1,087,658.70-705,752.20

Finding the Fourth Proportional to 726,488.20, 1,087,658.70 and 705,752.20

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Solution

The fourth proportional to 726,488.20, 1,087,658.70 and 705,752.20 is: 1,056,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,488.20 : 1,087,658.70 = 705,752.20 : x
  2. Step 2: Convert to fraction form
    726,488.20/1,087,658.70 = 705,752.20/x
  3. Step 3: Cross multiply
    726,488.20x = 1,087,658.70 × 705,752.20
  4. Step 4: Simplify right side
    726,488.20x = 767,617,520,374.14
  5. Step 5: Solve for x
    x = 767,617,520,374.14/726,488.20
  6. Step 6: Final answer
    x = 1,056,613.89

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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.