Home / 721,818.25-1,082,228.42-519,538.57

Finding the Fourth Proportional to 721,818.25, 1,082,228.42 and 519,538.57

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Solution

The fourth proportional to 721,818.25, 1,082,228.42 and 519,538.57 is: 778,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,818.25 : 1,082,228.42 = 519,538.57 : x
  2. Step 2: Convert to fraction form
    721,818.25/1,082,228.42 = 519,538.57/x
  3. Step 3: Cross multiply
    721,818.25x = 1,082,228.42 × 519,538.57
  4. Step 4: Simplify right side
    721,818.25x = 562,259,403,142.47
  5. Step 5: Solve for x
    x = 562,259,403,142.47/721,818.25
  6. Step 6: Final answer
    x = 778,948.72

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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.