Home / 726,153.60-1,088,452.80-326,726.40

Finding the Fourth Proportional to 726,153.60, 1,088,452.80 and 326,726.40

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Solution

The fourth proportional to 726,153.60, 1,088,452.80 and 326,726.40 is: 489,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,153.60 : 1,088,452.80 = 326,726.40 : x
  2. Step 2: Convert to fraction form
    726,153.60/1,088,452.80 = 326,726.40/x
  3. Step 3: Cross multiply
    726,153.60x = 1,088,452.80 × 326,726.40
  4. Step 4: Simplify right side
    726,153.60x = 355,626,264,913.92
  5. Step 5: Solve for x
    x = 355,626,264,913.92/726,153.60
  6. Step 6: Final answer
    x = 489,739.73

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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.