Home / 810,305.60-1,215,343.20-277,851.20

Finding the Fourth Proportional to 810,305.60, 1,215,343.20 and 277,851.20

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Solution

The fourth proportional to 810,305.60, 1,215,343.20 and 277,851.20 is: 416,737.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,305.60 : 1,215,343.20 = 277,851.20 : x
  2. Step 2: Convert to fraction form
    810,305.60/1,215,343.20 = 277,851.20/x
  3. Step 3: Cross multiply
    810,305.60x = 1,215,343.20 × 277,851.20
  4. Step 4: Simplify right side
    810,305.60x = 337,684,566,531.84
  5. Step 5: Solve for x
    x = 337,684,566,531.84/810,305.60
  6. Step 6: Final answer
    x = 416,737.30

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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.