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Finding the Fourth Proportional to 662,685.80, 914,516.90 and 360,879.56

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Solution

The fourth proportional to 662,685.80, 914,516.90 and 360,879.56 is: 498,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,685.80 : 914,516.90 = 360,879.56 : x
  2. Step 2: Convert to fraction form
    662,685.80/914,516.90 = 360,879.56/x
  3. Step 3: Cross multiply
    662,685.80x = 914,516.90 × 360,879.56
  4. Step 4: Simplify right side
    662,685.80x = 330,030,456,484.56
  5. Step 5: Solve for x
    x = 330,030,456,484.56/662,685.80
  6. Step 6: Final answer
    x = 498,019.51

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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.