Home / 725,782.16-1,001,601.12-399,078.24

Finding the Fourth Proportional to 725,782.16, 1,001,601.12 and 399,078.24

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Solution

The fourth proportional to 725,782.16, 1,001,601.12 and 399,078.24 is: 550,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,782.16 : 1,001,601.12 = 399,078.24 : x
  2. Step 2: Convert to fraction form
    725,782.16/1,001,601.12 = 399,078.24/x
  3. Step 3: Cross multiply
    725,782.16x = 1,001,601.12 × 399,078.24
  4. Step 4: Simplify right side
    725,782.16x = 399,717,212,151.63
  5. Step 5: Solve for x
    x = 399,717,212,151.63/725,782.16
  6. Step 6: Final answer
    x = 550,739.92

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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.