Home / 813,311.13-1,220,301.67-357,668.13

Finding the Fourth Proportional to 813,311.13, 1,220,301.67 and 357,668.13

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Solution

The fourth proportional to 813,311.13, 1,220,301.67 and 357,668.13 is: 536,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,311.13 : 1,220,301.67 = 357,668.13 : x
  2. Step 2: Convert to fraction form
    813,311.13/1,220,301.67 = 357,668.13/x
  3. Step 3: Cross multiply
    813,311.13x = 1,220,301.67 × 357,668.13
  4. Step 4: Simplify right side
    813,311.13x = 436,463,016,344.78
  5. Step 5: Solve for x
    x = 436,463,016,344.78/813,311.13
  6. Step 6: Final answer
    x = 536,649.51

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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.