Home / 828,765.76-1,143,282.72-523,220.80

Finding the Fourth Proportional to 828,765.76, 1,143,282.72 and 523,220.80

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Solution

The fourth proportional to 828,765.76, 1,143,282.72 and 523,220.80 is: 721,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,765.76 : 1,143,282.72 = 523,220.80 : x
  2. Step 2: Convert to fraction form
    828,765.76/1,143,282.72 = 523,220.80/x
  3. Step 3: Cross multiply
    828,765.76x = 1,143,282.72 × 523,220.80
  4. Step 4: Simplify right side
    828,765.76x = 598,189,299,384.58
  5. Step 5: Solve for x
    x = 598,189,299,384.58/828,765.76
  6. Step 6: Final answer
    x = 721,783.32

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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.