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Finding the Fourth Proportional to 662,544.45, 914,242.68 and 372,188.61

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Solution

The fourth proportional to 662,544.45, 914,242.68 and 372,188.61 is: 513,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,544.45 : 914,242.68 = 372,188.61 : x
  2. Step 2: Convert to fraction form
    662,544.45/914,242.68 = 372,188.61/x
  3. Step 3: Cross multiply
    662,544.45x = 914,242.68 × 372,188.61
  4. Step 4: Simplify right side
    662,544.45x = 340,270,712,271.88
  5. Step 5: Solve for x
    x = 340,270,712,271.88/662,544.45
  6. Step 6: Final answer
    x = 513,581.71

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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.