Home / 838,150.38-1,257,420.75-239,119.74

Finding the Fourth Proportional to 838,150.38, 1,257,420.75 and 239,119.74

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Solution

The fourth proportional to 838,150.38, 1,257,420.75 and 239,119.74 is: 358,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,150.38 : 1,257,420.75 = 239,119.74 : x
  2. Step 2: Convert to fraction form
    838,150.38/1,257,420.75 = 239,119.74/x
  3. Step 3: Cross multiply
    838,150.38x = 1,257,420.75 × 239,119.74
  4. Step 4: Simplify right side
    838,150.38x = 300,674,122,810.61
  5. Step 5: Solve for x
    x = 300,674,122,810.61/838,150.38
  6. Step 6: Final answer
    x = 358,735.29

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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.