Home / 779,836.20-1,170,272.70-442,876.20

Finding the Fourth Proportional to 779,836.20, 1,170,272.70 and 442,876.20

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Solution

The fourth proportional to 779,836.20, 1,170,272.70 and 442,876.20 is: 664,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,836.20 : 1,170,272.70 = 442,876.20 : x
  2. Step 2: Convert to fraction form
    779,836.20/1,170,272.70 = 442,876.20/x
  3. Step 3: Cross multiply
    779,836.20x = 1,170,272.70 × 442,876.20
  4. Step 4: Simplify right side
    779,836.20x = 518,285,926,339.74
  5. Step 5: Solve for x
    x = 518,285,926,339.74/779,836.20
  6. Step 6: Final answer
    x = 664,608.70

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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.