Home / 779,635.60-1,169,842.20-442,934.80

Finding the Fourth Proportional to 779,635.60, 1,169,842.20 and 442,934.80

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Solution

The fourth proportional to 779,635.60, 1,169,842.20 and 442,934.80 is: 664,623.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,635.60 : 1,169,842.20 = 442,934.80 : x
  2. Step 2: Convert to fraction form
    779,635.60/1,169,842.20 = 442,934.80/x
  3. Step 3: Cross multiply
    779,635.60x = 1,169,842.20 × 442,934.80
  4. Step 4: Simplify right side
    779,635.60x = 518,163,820,888.56
  5. Step 5: Solve for x
    x = 518,163,820,888.56/779,635.60
  6. Step 6: Final answer
    x = 664,623.09

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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.