Home / 791,378.30-1,092,122.38-485,623.62

Finding the Fourth Proportional to 791,378.30, 1,092,122.38 and 485,623.62

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Solution

The fourth proportional to 791,378.30, 1,092,122.38 and 485,623.62 is: 670,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,378.30 : 1,092,122.38 = 485,623.62 : x
  2. Step 2: Convert to fraction form
    791,378.30/1,092,122.38 = 485,623.62/x
  3. Step 3: Cross multiply
    791,378.30x = 1,092,122.38 × 485,623.62
  4. Step 4: Simplify right side
    791,378.30x = 530,360,423,658.62
  5. Step 5: Solve for x
    x = 530,360,423,658.62/791,378.30
  6. Step 6: Final answer
    x = 670,173.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.