Home / 838,138.35-1,257,402.74-239,107.71

Finding the Fourth Proportional to 838,138.35, 1,257,402.74 and 239,107.71

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Solution

The fourth proportional to 838,138.35, 1,257,402.74 and 239,107.71 is: 358,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,138.35 : 1,257,402.74 = 239,107.71 : x
  2. Step 2: Convert to fraction form
    838,138.35/1,257,402.74 = 239,107.71/x
  3. Step 3: Cross multiply
    838,138.35x = 1,257,402.74 × 239,107.71
  4. Step 4: Simplify right side
    838,138.35x = 300,654,688,513.59
  5. Step 5: Solve for x
    x = 300,654,688,513.59/838,138.35
  6. Step 6: Final answer
    x = 358,717.26

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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.