Home / 830,512.20-1,243,694.70-548,502.60

Finding the Fourth Proportional to 830,512.20, 1,243,694.70 and 548,502.60

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Solution

The fourth proportional to 830,512.20, 1,243,694.70 and 548,502.60 is: 821,384.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,512.20 : 1,243,694.70 = 548,502.60 : x
  2. Step 2: Convert to fraction form
    830,512.20/1,243,694.70 = 548,502.60/x
  3. Step 3: Cross multiply
    830,512.20x = 1,243,694.70 × 548,502.60
  4. Step 4: Simplify right side
    830,512.20x = 682,169,776,556.22
  5. Step 5: Solve for x
    x = 682,169,776,556.22/830,512.20
  6. Step 6: Final answer
    x = 821,384.41

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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.