Home / 428,881.68-591,857.30-237,895.06

Finding the Fourth Proportional to 428,881.68, 591,857.30 and 237,895.06

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Solution

The fourth proportional to 428,881.68, 591,857.30 and 237,895.06 is: 328,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,881.68 : 591,857.30 = 237,895.06 : x
  2. Step 2: Convert to fraction form
    428,881.68/591,857.30 = 237,895.06/x
  3. Step 3: Cross multiply
    428,881.68x = 591,857.30 × 237,895.06
  4. Step 4: Simplify right side
    428,881.68x = 140,799,927,894.94
  5. Step 5: Solve for x
    x = 140,799,927,894.94/428,881.68
  6. Step 6: Final answer
    x = 328,295.51

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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.