Home / 917,104.80-1,375,657.20-252,256.80

Finding the Fourth Proportional to 917,104.80, 1,375,657.20 and 252,256.80

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Solution

The fourth proportional to 917,104.80, 1,375,657.20 and 252,256.80 is: 378,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,104.80 : 1,375,657.20 = 252,256.80 : x
  2. Step 2: Convert to fraction form
    917,104.80/1,375,657.20 = 252,256.80/x
  3. Step 3: Cross multiply
    917,104.80x = 1,375,657.20 × 252,256.80
  4. Step 4: Simplify right side
    917,104.80x = 347,018,883,168.96
  5. Step 5: Solve for x
    x = 347,018,883,168.96/917,104.80
  6. Step 6: Final answer
    x = 378,385.20

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Similar ratio
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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.