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Finding the Fourth Proportional to 658,564.06, 908,818.50 and 356,758.06

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Solution

The fourth proportional to 658,564.06, 908,818.50 and 356,758.06 is: 492,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,564.06 : 908,818.50 = 356,758.06 : x
  2. Step 2: Convert to fraction form
    658,564.06/908,818.50 = 356,758.06/x
  3. Step 3: Cross multiply
    658,564.06x = 908,818.50 × 356,758.06
  4. Step 4: Simplify right side
    658,564.06x = 324,228,324,952.11
  5. Step 5: Solve for x
    x = 324,228,324,952.11/658,564.06
  6. Step 6: Final answer
    x = 492,326.18

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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.