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Finding the Fourth Proportional to 725,585, 1,089,952.12 and 613,490.30

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Solution

The fourth proportional to 725,585, 1,089,952.12 and 613,490.30 is: 921,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,585 : 1,089,952.12 = 613,490.30 : x
  2. Step 2: Convert to fraction form
    725,585/1,089,952.12 = 613,490.30/x
  3. Step 3: Cross multiply
    725,585x = 1,089,952.12 × 613,490.30
  4. Step 4: Simplify right side
    725,585x = 668,675,053,084.44
  5. Step 5: Solve for x
    x = 668,675,053,084.44/725,585
  6. Step 6: Final answer
    x = 921,566.81

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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.