Home / 790,826.80-1,186,240.20-579,319.60

Finding the Fourth Proportional to 790,826.80, 1,186,240.20 and 579,319.60

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Solution

The fourth proportional to 790,826.80, 1,186,240.20 and 579,319.60 is: 868,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,826.80 : 1,186,240.20 = 579,319.60 : x
  2. Step 2: Convert to fraction form
    790,826.80/1,186,240.20 = 579,319.60/x
  3. Step 3: Cross multiply
    790,826.80x = 1,186,240.20 × 579,319.60
  4. Step 4: Simplify right side
    790,826.80x = 687,212,198,167.92
  5. Step 5: Solve for x
    x = 687,212,198,167.92/790,826.80
  6. Step 6: Final answer
    x = 868,979.40

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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.