Home / 771,517.60-1,157,276.40-272,816.80

Finding the Fourth Proportional to 771,517.60, 1,157,276.40 and 272,816.80

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Solution

The fourth proportional to 771,517.60, 1,157,276.40 and 272,816.80 is: 409,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,517.60 : 1,157,276.40 = 272,816.80 : x
  2. Step 2: Convert to fraction form
    771,517.60/1,157,276.40 = 272,816.80/x
  3. Step 3: Cross multiply
    771,517.60x = 1,157,276.40 × 272,816.80
  4. Step 4: Simplify right side
    771,517.60x = 315,724,444,163.52
  5. Step 5: Solve for x
    x = 315,724,444,163.52/771,517.60
  6. Step 6: Final answer
    x = 409,225.20

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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.