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Finding the Fourth Proportional to 505,205.80, 755,621.70 and 452,280.40

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Solution

The fourth proportional to 505,205.80, 755,621.70 and 452,280.40 is: 676,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,205.80 : 755,621.70 = 452,280.40 : x
  2. Step 2: Convert to fraction form
    505,205.80/755,621.70 = 452,280.40/x
  3. Step 3: Cross multiply
    505,205.80x = 755,621.70 × 452,280.40
  4. Step 4: Simplify right side
    505,205.80x = 341,752,884,724.68
  5. Step 5: Solve for x
    x = 341,752,884,724.68/505,205.80
  6. Step 6: Final answer
    x = 676,462.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.