Home / 859,181.80-1,288,772.70-722,324.20

Finding the Fourth Proportional to 859,181.80, 1,288,772.70 and 722,324.20

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Solution

The fourth proportional to 859,181.80, 1,288,772.70 and 722,324.20 is: 1,083,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,181.80 : 1,288,772.70 = 722,324.20 : x
  2. Step 2: Convert to fraction form
    859,181.80/1,288,772.70 = 722,324.20/x
  3. Step 3: Cross multiply
    859,181.80x = 1,288,772.70 × 722,324.20
  4. Step 4: Simplify right side
    859,181.80x = 930,911,709,509.34
  5. Step 5: Solve for x
    x = 930,911,709,509.34/859,181.80
  6. Step 6: Final answer
    x = 1,083,486.30

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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.