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Finding the Fourth Proportional to 670,493.82, 925,281.48 and 368,687.82

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Solution

The fourth proportional to 670,493.82, 925,281.48 and 368,687.82 is: 508,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,493.82 : 925,281.48 = 368,687.82 : x
  2. Step 2: Convert to fraction form
    670,493.82/925,281.48 = 368,687.82/x
  3. Step 3: Cross multiply
    670,493.82x = 925,281.48 × 368,687.82
  4. Step 4: Simplify right side
    670,493.82x = 341,140,011,747.57
  5. Step 5: Solve for x
    x = 341,140,011,747.57/670,493.82
  6. Step 6: Final answer
    x = 508,789.20

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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.