Home / 428,948.51-591,947.14-237,961.90

Finding the Fourth Proportional to 428,948.51, 591,947.14 and 237,961.90

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Solution

The fourth proportional to 428,948.51, 591,947.14 and 237,961.90 is: 328,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,948.51 : 591,947.14 = 237,961.90 : x
  2. Step 2: Convert to fraction form
    428,948.51/591,947.14 = 237,961.90/x
  3. Step 3: Cross multiply
    428,948.51x = 591,947.14 × 237,961.90
  4. Step 4: Simplify right side
    428,948.51x = 140,860,866,133.97
  5. Step 5: Solve for x
    x = 140,860,866,133.97/428,948.51
  6. Step 6: Final answer
    x = 328,386.42

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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.