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Finding the Fourth Proportional to 662,489.89, 914,240.42 and 376,014.76

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Solution

The fourth proportional to 662,489.89, 914,240.42 and 376,014.76 is: 518,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,489.89 : 914,240.42 = 376,014.76 : x
  2. Step 2: Convert to fraction form
    662,489.89/914,240.42 = 376,014.76/x
  3. Step 3: Cross multiply
    662,489.89x = 914,240.42 × 376,014.76
  4. Step 4: Simplify right side
    662,489.89x = 343,767,889,352.98
  5. Step 5: Solve for x
    x = 343,767,889,352.98/662,489.89
  6. Step 6: Final answer
    x = 518,902.85

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Double scale
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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.