Home / 725,620.40-1,088,430.60-331,636.40

Finding the Fourth Proportional to 725,620.40, 1,088,430.60 and 331,636.40

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Solution

The fourth proportional to 725,620.40, 1,088,430.60 and 331,636.40 is: 497,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,620.40 : 1,088,430.60 = 331,636.40 : x
  2. Step 2: Convert to fraction form
    725,620.40/1,088,430.60 = 331,636.40/x
  3. Step 3: Cross multiply
    725,620.40x = 1,088,430.60 × 331,636.40
  4. Step 4: Simplify right side
    725,620.40x = 360,963,205,833.84
  5. Step 5: Solve for x
    x = 360,963,205,833.84/725,620.40
  6. Step 6: Final answer
    x = 497,454.60

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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.