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Finding the Fourth Proportional to 662,406.68, 914,121.10 and 360,600.60

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Solution

The fourth proportional to 662,406.68, 914,121.10 and 360,600.60 is: 497,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,406.68 : 914,121.10 = 360,600.60 : x
  2. Step 2: Convert to fraction form
    662,406.68/914,121.10 = 360,600.60/x
  3. Step 3: Cross multiply
    662,406.68x = 914,121.10 × 360,600.60
  4. Step 4: Simplify right side
    662,406.68x = 329,632,617,132.66
  5. Step 5: Solve for x
    x = 329,632,617,132.66/662,406.68
  6. Step 6: Final answer
    x = 497,628.76

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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.