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Finding the Fourth Proportional to 838,248, 1,257,402.60 and 298,544.03

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Solution

The fourth proportional to 838,248, 1,257,402.60 and 298,544.03 is: 447,826.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,248 : 1,257,402.60 = 298,544.03 : x
  2. Step 2: Convert to fraction form
    838,248/1,257,402.60 = 298,544.03/x
  3. Step 3: Cross multiply
    838,248x = 1,257,402.60 × 298,544.03
  4. Step 4: Simplify right side
    838,248x = 375,390,033,249.47
  5. Step 5: Solve for x
    x = 375,390,033,249.47/838,248
  6. Step 6: Final answer
    x = 447,826.94

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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.