Home / 838,207.55-1,257,357.78-239,122.64

Finding the Fourth Proportional to 838,207.55, 1,257,357.78 and 239,122.64

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Solution

The fourth proportional to 838,207.55, 1,257,357.78 and 239,122.64 is: 358,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,207.55 : 1,257,357.78 = 239,122.64 : x
  2. Step 2: Convert to fraction form
    838,207.55/1,257,357.78 = 239,122.64/x
  3. Step 3: Cross multiply
    838,207.55x = 1,257,357.78 × 239,122.64
  4. Step 4: Simplify right side
    838,207.55x = 300,662,705,491.35
  5. Step 5: Solve for x
    x = 300,662,705,491.35/838,207.55
  6. Step 6: Final answer
    x = 358,697.21

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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.