Home / 725,796.83-1,001,603.51-399,130.91

Finding the Fourth Proportional to 725,796.83, 1,001,603.51 and 399,130.91

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Solution

The fourth proportional to 725,796.83, 1,001,603.51 and 399,130.91 is: 550,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,796.83 : 1,001,603.51 = 399,130.91 : x
  2. Step 2: Convert to fraction form
    725,796.83/1,001,603.51 = 399,130.91/x
  3. Step 3: Cross multiply
    725,796.83x = 1,001,603.51 × 399,130.91
  4. Step 4: Simplify right side
    725,796.83x = 399,770,913,401.82
  5. Step 5: Solve for x
    x = 399,770,913,401.82/725,796.83
  6. Step 6: Final answer
    x = 550,802.79

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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.