Home / 932,612.80-1,398,919.20-859,129.60

Finding the Fourth Proportional to 932,612.80, 1,398,919.20 and 859,129.60

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Solution

The fourth proportional to 932,612.80, 1,398,919.20 and 859,129.60 is: 1,288,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,612.80 : 1,398,919.20 = 859,129.60 : x
  2. Step 2: Convert to fraction form
    932,612.80/1,398,919.20 = 859,129.60/x
  3. Step 3: Cross multiply
    932,612.80x = 1,398,919.20 × 859,129.60
  4. Step 4: Simplify right side
    932,612.80x = 1,201,852,892,728.32
  5. Step 5: Solve for x
    x = 1,201,852,892,728.32/932,612.80
  6. Step 6: Final answer
    x = 1,288,694.40

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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.