Home / 932,620.80-1,398,931.20-859,137.60

Finding the Fourth Proportional to 932,620.80, 1,398,931.20 and 859,137.60

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Solution

The fourth proportional to 932,620.80, 1,398,931.20 and 859,137.60 is: 1,288,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,620.80 : 1,398,931.20 = 859,137.60 : x
  2. Step 2: Convert to fraction form
    932,620.80/1,398,931.20 = 859,137.60/x
  3. Step 3: Cross multiply
    932,620.80x = 1,398,931.20 × 859,137.60
  4. Step 4: Simplify right side
    932,620.80x = 1,201,874,393,733.12
  5. Step 5: Solve for x
    x = 1,201,874,393,733.12/932,620.80
  6. Step 6: Final answer
    x = 1,288,706.40

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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.