Home / 728,877.60-1,093,316.40-255,610.80

Finding the Fourth Proportional to 728,877.60, 1,093,316.40 and 255,610.80

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Solution

The fourth proportional to 728,877.60, 1,093,316.40 and 255,610.80 is: 383,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,877.60 : 1,093,316.40 = 255,610.80 : x
  2. Step 2: Convert to fraction form
    728,877.60/1,093,316.40 = 255,610.80/x
  3. Step 3: Cross multiply
    728,877.60x = 1,093,316.40 × 255,610.80
  4. Step 4: Simplify right side
    728,877.60x = 279,463,479,657.12
  5. Step 5: Solve for x
    x = 279,463,479,657.12/728,877.60
  6. Step 6: Final answer
    x = 383,416.20

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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.