Home / 792,357.20-1,187,913.72-542,281.04

Finding the Fourth Proportional to 792,357.20, 1,187,913.72 and 542,281.04

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Solution

The fourth proportional to 792,357.20, 1,187,913.72 and 542,281.04 is: 812,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,357.20 : 1,187,913.72 = 542,281.04 : x
  2. Step 2: Convert to fraction form
    792,357.20/1,187,913.72 = 542,281.04/x
  3. Step 3: Cross multiply
    792,357.20x = 1,187,913.72 × 542,281.04
  4. Step 4: Simplify right side
    792,357.20x = 644,183,087,511.87
  5. Step 5: Solve for x
    x = 644,183,087,511.87/792,357.20
  6. Step 6: Final answer
    x = 812,995.81

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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.