Home / 728,391.48-1,004,822.92-486,733.36

Finding the Fourth Proportional to 728,391.48, 1,004,822.92 and 486,733.36

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Solution

The fourth proportional to 728,391.48, 1,004,822.92 and 486,733.36 is: 671,453.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,391.48 : 1,004,822.92 = 486,733.36 : x
  2. Step 2: Convert to fraction form
    728,391.48/1,004,822.92 = 486,733.36/x
  3. Step 3: Cross multiply
    728,391.48x = 1,004,822.92 × 486,733.36
  4. Step 4: Simplify right side
    728,391.48x = 489,080,836,056.61
  5. Step 5: Solve for x
    x = 489,080,836,056.61/728,391.48
  6. Step 6: Final answer
    x = 671,453.26

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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.