Home / 428,727.60-591,680.43-237,802.50

Finding the Fourth Proportional to 428,727.60, 591,680.43 and 237,802.50

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Solution

The fourth proportional to 428,727.60, 591,680.43 and 237,802.50 is: 328,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,727.60 : 591,680.43 = 237,802.50 : x
  2. Step 2: Convert to fraction form
    428,727.60/591,680.43 = 237,802.50/x
  3. Step 3: Cross multiply
    428,727.60x = 591,680.43 × 237,802.50
  4. Step 4: Simplify right side
    428,727.60x = 140,703,085,455.08
  5. Step 5: Solve for x
    x = 140,703,085,455.08/428,727.60
  6. Step 6: Final answer
    x = 328,187.61

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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.