Home / 781,999.88-1,172,979.30-249,553.40

Finding the Fourth Proportional to 781,999.88, 1,172,979.30 and 249,553.40

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Solution

The fourth proportional to 781,999.88, 1,172,979.30 and 249,553.40 is: 374,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,999.88 : 1,172,979.30 = 249,553.40 : x
  2. Step 2: Convert to fraction form
    781,999.88/1,172,979.30 = 249,553.40/x
  3. Step 3: Cross multiply
    781,999.88x = 1,172,979.30 × 249,553.40
  4. Step 4: Simplify right side
    781,999.88x = 292,720,972,444.62
  5. Step 5: Solve for x
    x = 292,720,972,444.62/781,999.88
  6. Step 6: Final answer
    x = 374,323.55

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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.