Home / 792,139.70-1,188,209.55-723,710.90

Finding the Fourth Proportional to 792,139.70, 1,188,209.55 and 723,710.90

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Solution

The fourth proportional to 792,139.70, 1,188,209.55 and 723,710.90 is: 1,085,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,139.70 : 1,188,209.55 = 723,710.90 : x
  2. Step 2: Convert to fraction form
    792,139.70/1,188,209.55 = 723,710.90/x
  3. Step 3: Cross multiply
    792,139.70x = 1,188,209.55 × 723,710.90
  4. Step 4: Simplify right side
    792,139.70x = 859,920,202,819.10
  5. Step 5: Solve for x
    x = 859,920,202,819.10/792,139.70
  6. Step 6: Final answer
    x = 1,085,566.35

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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.