Home / 421,591.10-581,632.29-268,601.90

Finding the Fourth Proportional to 421,591.10, 581,632.29 and 268,601.90

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Solution

The fourth proportional to 421,591.10, 581,632.29 and 268,601.90 is: 370,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,591.10 : 581,632.29 = 268,601.90 : x
  2. Step 2: Convert to fraction form
    421,591.10/581,632.29 = 268,601.90/x
  3. Step 3: Cross multiply
    421,591.10x = 581,632.29 × 268,601.90
  4. Step 4: Simplify right side
    421,591.10x = 156,227,535,287.19
  5. Step 5: Solve for x
    x = 156,227,535,287.19/421,591.10
  6. Step 6: Final answer
    x = 370,566.49

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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.