Home / 726,165.60-1,088,470.80-326,738.40

Finding the Fourth Proportional to 726,165.60, 1,088,470.80 and 326,738.40

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Solution

The fourth proportional to 726,165.60, 1,088,470.80 and 326,738.40 is: 489,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,165.60 : 1,088,470.80 = 326,738.40 : x
  2. Step 2: Convert to fraction form
    726,165.60/1,088,470.80 = 326,738.40/x
  3. Step 3: Cross multiply
    726,165.60x = 1,088,470.80 × 326,738.40
  4. Step 4: Simplify right side
    726,165.60x = 355,645,207,638.72
  5. Step 5: Solve for x
    x = 355,645,207,638.72/726,165.60
  6. Step 6: Final answer
    x = 489,757.72

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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.