Home / 725,551.88-1,088,696.46-326,112.20

Finding the Fourth Proportional to 725,551.88, 1,088,696.46 and 326,112.20

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Solution

The fourth proportional to 725,551.88, 1,088,696.46 and 326,112.20 is: 489,333.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,551.88 : 1,088,696.46 = 326,112.20 : x
  2. Step 2: Convert to fraction form
    725,551.88/1,088,696.46 = 326,112.20/x
  3. Step 3: Cross multiply
    725,551.88x = 1,088,696.46 × 326,112.20
  4. Step 4: Simplify right side
    725,551.88x = 355,037,197,702.81
  5. Step 5: Solve for x
    x = 355,037,197,702.81/725,551.88
  6. Step 6: Final answer
    x = 489,333.99

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1.5x scale

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.