Home / 680,538.93-1,020,901.78-231,139.13

Finding the Fourth Proportional to 680,538.93, 1,020,901.78 and 231,139.13

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Solution

The fourth proportional to 680,538.93, 1,020,901.78 and 231,139.13 is: 346,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,538.93 : 1,020,901.78 = 231,139.13 : x
  2. Step 2: Convert to fraction form
    680,538.93/1,020,901.78 = 231,139.13/x
  3. Step 3: Cross multiply
    680,538.93x = 1,020,901.78 × 231,139.13
  4. Step 4: Simplify right side
    680,538.93x = 235,970,350,307.11
  5. Step 5: Solve for x
    x = 235,970,350,307.11/680,538.93
  6. Step 6: Final answer
    x = 346,740.42

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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.