Home / 680,539.43-1,020,902.53-231,139.63

Finding the Fourth Proportional to 680,539.43, 1,020,902.53 and 231,139.63

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Solution

The fourth proportional to 680,539.43, 1,020,902.53 and 231,139.63 is: 346,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,539.43 : 1,020,902.53 = 231,139.63 : x
  2. Step 2: Convert to fraction form
    680,539.43/1,020,902.53 = 231,139.63/x
  3. Step 3: Cross multiply
    680,539.43x = 1,020,902.53 × 231,139.63
  4. Step 4: Simplify right side
    680,539.43x = 235,971,031,894.57
  5. Step 5: Solve for x
    x = 235,971,031,894.57/680,539.43
  6. Step 6: Final answer
    x = 346,741.16

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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.