Home / 820,537.20-1,228,732.20-654,649.20

Finding the Fourth Proportional to 820,537.20, 1,228,732.20 and 654,649.20

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Solution

The fourth proportional to 820,537.20, 1,228,732.20 and 654,649.20 is: 980,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,537.20 : 1,228,732.20 = 654,649.20 : x
  2. Step 2: Convert to fraction form
    820,537.20/1,228,732.20 = 654,649.20/x
  3. Step 3: Cross multiply
    820,537.20x = 1,228,732.20 × 654,649.20
  4. Step 4: Simplify right side
    820,537.20x = 804,388,551,744.24
  5. Step 5: Solve for x
    x = 804,388,551,744.24/820,537.20
  6. Step 6: Final answer
    x = 980,319.42

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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.