Home / 539,131.60-743,999.48-297,429.20

Finding the Fourth Proportional to 539,131.60, 743,999.48 and 297,429.20

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Solution

The fourth proportional to 539,131.60, 743,999.48 and 297,429.20 is: 410,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,131.60 : 743,999.48 = 297,429.20 : x
  2. Step 2: Convert to fraction form
    539,131.60/743,999.48 = 297,429.20/x
  3. Step 3: Cross multiply
    539,131.60x = 743,999.48 × 297,429.20
  4. Step 4: Simplify right side
    539,131.60x = 221,287,170,136.82
  5. Step 5: Solve for x
    x = 221,287,170,136.82/539,131.60
  6. Step 6: Final answer
    x = 410,451.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.