Home / 743,821.40-1,115,732.10-444,639.80

Finding the Fourth Proportional to 743,821.40, 1,115,732.10 and 444,639.80

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Solution

The fourth proportional to 743,821.40, 1,115,732.10 and 444,639.80 is: 666,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,821.40 : 1,115,732.10 = 444,639.80 : x
  2. Step 2: Convert to fraction form
    743,821.40/1,115,732.10 = 444,639.80/x
  3. Step 3: Cross multiply
    743,821.40x = 1,115,732.10 × 444,639.80
  4. Step 4: Simplify right side
    743,821.40x = 496,098,897,797.58
  5. Step 5: Solve for x
    x = 496,098,897,797.58/743,821.40
  6. Step 6: Final answer
    x = 666,959.70

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Double scale
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Similar ratio
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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.