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Finding the Fourth Proportional to 674,261.35, 930,468.92 and 368,329.87

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Solution

The fourth proportional to 674,261.35, 930,468.92 and 368,329.87 is: 508,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,261.35 : 930,468.92 = 368,329.87 : x
  2. Step 2: Convert to fraction form
    674,261.35/930,468.92 = 368,329.87/x
  3. Step 3: Cross multiply
    674,261.35x = 930,468.92 × 368,329.87
  4. Step 4: Simplify right side
    674,261.35x = 342,719,492,174.82
  5. Step 5: Solve for x
    x = 342,719,492,174.82/674,261.35
  6. Step 6: Final answer
    x = 508,288.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.