Home / 779,815.38-1,169,723.07-330,526.20

Finding the Fourth Proportional to 779,815.38, 1,169,723.07 and 330,526.20

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Solution

The fourth proportional to 779,815.38, 1,169,723.07 and 330,526.20 is: 495,789.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,815.38 : 1,169,723.07 = 330,526.20 : x
  2. Step 2: Convert to fraction form
    779,815.38/1,169,723.07 = 330,526.20/x
  3. Step 3: Cross multiply
    779,815.38x = 1,169,723.07 × 330,526.20
  4. Step 4: Simplify right side
    779,815.38x = 386,624,121,379.43
  5. Step 5: Solve for x
    x = 386,624,121,379.43/779,815.38
  6. Step 6: Final answer
    x = 495,789.30

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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.