Home / 739,258.65-1,108,720.71-339,515.15

Finding the Fourth Proportional to 739,258.65, 1,108,720.71 and 339,515.15

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Solution

The fourth proportional to 739,258.65, 1,108,720.71 and 339,515.15 is: 509,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,258.65 : 1,108,720.71 = 339,515.15 : x
  2. Step 2: Convert to fraction form
    739,258.65/1,108,720.71 = 339,515.15/x
  3. Step 3: Cross multiply
    739,258.65x = 1,108,720.71 × 339,515.15
  4. Step 4: Simplify right side
    739,258.65x = 376,427,472,620.15
  5. Step 5: Solve for x
    x = 376,427,472,620.15/739,258.65
  6. Step 6: Final answer
    x = 509,195.90

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Double scale
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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.