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Finding the Fourth Proportional to 648,052.45, 908,206.55 and 648,052.45

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Solution

The fourth proportional to 648,052.45, 908,206.55 and 648,052.45 is: 908,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,052.45 : 908,206.55 = 648,052.45 : x
  2. Step 2: Convert to fraction form
    648,052.45/908,206.55 = 648,052.45/x
  3. Step 3: Cross multiply
    648,052.45x = 908,206.55 × 648,052.45
  4. Step 4: Simplify right side
    648,052.45x = 588,565,479,833.55
  5. Step 5: Solve for x
    x = 588,565,479,833.55/648,052.45
  6. Step 6: Final answer
    x = 908,206.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.