Home / 987,742.25-1,363,056.42-579,837.59

Finding the Fourth Proportional to 987,742.25, 1,363,056.42 and 579,837.59

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Solution

The fourth proportional to 987,742.25, 1,363,056.42 and 579,837.59 is: 800,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,742.25 : 1,363,056.42 = 579,837.59 : x
  2. Step 2: Convert to fraction form
    987,742.25/1,363,056.42 = 579,837.59/x
  3. Step 3: Cross multiply
    987,742.25x = 1,363,056.42 × 579,837.59
  4. Step 4: Simplify right side
    987,742.25x = 790,351,350,077.40
  5. Step 5: Solve for x
    x = 790,351,350,077.40/987,742.25
  6. Step 6: Final answer
    x = 800,159.51

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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.