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Finding the Fourth Proportional to 662,438.32, 914,168.30 and 360,634.48

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Solution

The fourth proportional to 662,438.32, 914,168.30 and 360,634.48 is: 497,677.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,438.32 : 914,168.30 = 360,634.48 : x
  2. Step 2: Convert to fraction form
    662,438.32/914,168.30 = 360,634.48/x
  3. Step 3: Cross multiply
    662,438.32x = 914,168.30 × 360,634.48
  4. Step 4: Simplify right side
    662,438.32x = 329,680,609,502.98
  5. Step 5: Solve for x
    x = 329,680,609,502.98/662,438.32
  6. Step 6: Final answer
    x = 497,677.44

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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.