Home / 539,206.80-809,466.30-272,830.20

Finding the Fourth Proportional to 539,206.80, 809,466.30 and 272,830.20

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Solution

The fourth proportional to 539,206.80, 809,466.30 and 272,830.20 is: 409,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,206.80 : 809,466.30 = 272,830.20 : x
  2. Step 2: Convert to fraction form
    539,206.80/809,466.30 = 272,830.20/x
  3. Step 3: Cross multiply
    539,206.80x = 809,466.30 × 272,830.20
  4. Step 4: Simplify right side
    539,206.80x = 220,846,852,522.26
  5. Step 5: Solve for x
    x = 220,846,852,522.26/539,206.80
  6. Step 6: Final answer
    x = 409,577.28

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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.