Home / 781,293.57-1,172,057.34-282,774.21

Finding the Fourth Proportional to 781,293.57, 1,172,057.34 and 282,774.21

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Solution

The fourth proportional to 781,293.57, 1,172,057.34 and 282,774.21 is: 424,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,293.57 : 1,172,057.34 = 282,774.21 : x
  2. Step 2: Convert to fraction form
    781,293.57/1,172,057.34 = 282,774.21/x
  3. Step 3: Cross multiply
    781,293.57x = 1,172,057.34 × 282,774.21
  4. Step 4: Simplify right side
    781,293.57x = 331,427,588,393.20
  5. Step 5: Solve for x
    x = 331,427,588,393.20/781,293.57
  6. Step 6: Final answer
    x = 424,203.66

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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.