Home / 827,032.80-1,240,549.20-687,064.80

Finding the Fourth Proportional to 827,032.80, 1,240,549.20 and 687,064.80

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Solution

The fourth proportional to 827,032.80, 1,240,549.20 and 687,064.80 is: 1,030,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,032.80 : 1,240,549.20 = 687,064.80 : x
  2. Step 2: Convert to fraction form
    827,032.80/1,240,549.20 = 687,064.80/x
  3. Step 3: Cross multiply
    827,032.80x = 1,240,549.20 × 687,064.80
  4. Step 4: Simplify right side
    827,032.80x = 852,337,687,988.16
  5. Step 5: Solve for x
    x = 852,337,687,988.16/827,032.80
  6. Step 6: Final answer
    x = 1,030,597.20

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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.