Home / 725,348.76-1,001,108.91-419,376.54

Finding the Fourth Proportional to 725,348.76, 1,001,108.91 and 419,376.54

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Solution

The fourth proportional to 725,348.76, 1,001,108.91 and 419,376.54 is: 578,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,348.76 : 1,001,108.91 = 419,376.54 : x
  2. Step 2: Convert to fraction form
    725,348.76/1,001,108.91 = 419,376.54/x
  3. Step 3: Cross multiply
    725,348.76x = 1,001,108.91 × 419,376.54
  4. Step 4: Simplify right side
    725,348.76x = 419,841,590,838.97
  5. Step 5: Solve for x
    x = 419,841,590,838.97/725,348.76
  6. Step 6: Final answer
    x = 578,813.41

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Double scale
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1.5x scale

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.