Home / 779,277.40-1,168,916.10-280,576.60

Finding the Fourth Proportional to 779,277.40, 1,168,916.10 and 280,576.60

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Solution

The fourth proportional to 779,277.40, 1,168,916.10 and 280,576.60 is: 420,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,277.40 : 1,168,916.10 = 280,576.60 : x
  2. Step 2: Convert to fraction form
    779,277.40/1,168,916.10 = 280,576.60/x
  3. Step 3: Cross multiply
    779,277.40x = 1,168,916.10 × 280,576.60
  4. Step 4: Simplify right side
    779,277.40x = 327,970,505,023.26
  5. Step 5: Solve for x
    x = 327,970,505,023.26/779,277.40
  6. Step 6: Final answer
    x = 420,864.90

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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.