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Finding the Fourth Proportional to 658,462.40, 908,665.08 and 368,072.60

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Solution

The fourth proportional to 658,462.40, 908,665.08 and 368,072.60 is: 507,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,462.40 : 908,665.08 = 368,072.60 : x
  2. Step 2: Convert to fraction form
    658,462.40/908,665.08 = 368,072.60/x
  3. Step 3: Cross multiply
    658,462.40x = 908,665.08 × 368,072.60
  4. Step 4: Simplify right side
    658,462.40x = 334,454,718,524.81
  5. Step 5: Solve for x
    x = 334,454,718,524.81/658,462.40
  6. Step 6: Final answer
    x = 507,932.90

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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.