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Finding the Fourth Proportional to 550,792.31, 760,169.00 and 309,089.12

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Solution

The fourth proportional to 550,792.31, 760,169.00 and 309,089.12 is: 426,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,792.31 : 760,169.00 = 309,089.12 : x
  2. Step 2: Convert to fraction form
    550,792.31/760,169.00 = 309,089.12/x
  3. Step 3: Cross multiply
    550,792.31x = 760,169.00 × 309,089.12
  4. Step 4: Simplify right side
    550,792.31x = 234,959,964,233.16
  5. Step 5: Solve for x
    x = 234,959,964,233.16/550,792.31
  6. Step 6: Final answer
    x = 426,585.42

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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.