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Finding the Fourth Proportional to 662,664.80, 914,487.84 and 360,858.56

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Solution

The fourth proportional to 662,664.80, 914,487.84 and 360,858.56 is: 497,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,664.80 : 914,487.84 = 360,858.56 : x
  2. Step 2: Convert to fraction form
    662,664.80/914,487.84 = 360,858.56/x
  3. Step 3: Cross multiply
    662,664.80x = 914,487.84 × 360,858.56
  4. Step 4: Simplify right side
    662,664.80x = 330,000,765,079.91
  5. Step 5: Solve for x
    x = 330,000,765,079.91/662,664.80
  6. Step 6: Final answer
    x = 497,990.48

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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.