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Finding the Fourth Proportional to 660,550.98, 911,616.57 and 374,122.02

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Solution

The fourth proportional to 660,550.98, 911,616.57 and 374,122.02 is: 516,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,550.98 : 911,616.57 = 374,122.02 : x
  2. Step 2: Convert to fraction form
    660,550.98/911,616.57 = 374,122.02/x
  3. Step 3: Cross multiply
    660,550.98x = 911,616.57 × 374,122.02
  4. Step 4: Simplify right side
    660,550.98x = 341,055,832,633.87
  5. Step 5: Solve for x
    x = 341,055,832,633.87/660,550.98
  6. Step 6: Final answer
    x = 516,320.23

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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.