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Finding the Fourth Proportional to 887,847.80, 1,330,240.80 and 413,560.40

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Solution

The fourth proportional to 887,847.80, 1,330,240.80 and 413,560.40 is: 619,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,847.80 : 1,330,240.80 = 413,560.40 : x
  2. Step 2: Convert to fraction form
    887,847.80/1,330,240.80 = 413,560.40/x
  3. Step 3: Cross multiply
    887,847.80x = 1,330,240.80 × 413,560.40
  4. Step 4: Simplify right side
    887,847.80x = 550,134,917,344.32
  5. Step 5: Solve for x
    x = 550,134,917,344.32/887,847.80
  6. Step 6: Final answer
    x = 619,627.51

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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.