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Finding the Fourth Proportional to 658,178.94, 908,289.27 and 356,372.94

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Solution

The fourth proportional to 658,178.94, 908,289.27 and 356,372.94 is: 491,795.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,178.94 : 908,289.27 = 356,372.94 : x
  2. Step 2: Convert to fraction form
    658,178.94/908,289.27 = 356,372.94/x
  3. Step 3: Cross multiply
    658,178.94x = 908,289.27 × 356,372.94
  4. Step 4: Simplify right side
    658,178.94x = 323,689,717,520.35
  5. Step 5: Solve for x
    x = 323,689,717,520.35/658,178.94
  6. Step 6: Final answer
    x = 491,795.92

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1.5x scale

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.