Home / 828,904.80-1,244,278.80-513,717.60

Finding the Fourth Proportional to 828,904.80, 1,244,278.80 and 513,717.60

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Solution

The fourth proportional to 828,904.80, 1,244,278.80 and 513,717.60 is: 771,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,904.80 : 1,244,278.80 = 513,717.60 : x
  2. Step 2: Convert to fraction form
    828,904.80/1,244,278.80 = 513,717.60/x
  3. Step 3: Cross multiply
    828,904.80x = 1,244,278.80 × 513,717.60
  4. Step 4: Simplify right side
    828,904.80x = 639,207,918,866.88
  5. Step 5: Solve for x
    x = 639,207,918,866.88/828,904.80
  6. Step 6: Final answer
    x = 771,147.57

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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.