Home / 489,816.10-734,724.15-486,705.70

Finding the Fourth Proportional to 489,816.10, 734,724.15 and 486,705.70

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Solution

The fourth proportional to 489,816.10, 734,724.15 and 486,705.70 is: 730,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,816.10 : 734,724.15 = 486,705.70 : x
  2. Step 2: Convert to fraction form
    489,816.10/734,724.15 = 486,705.70/x
  3. Step 3: Cross multiply
    489,816.10x = 734,724.15 × 486,705.70
  4. Step 4: Simplify right side
    489,816.10x = 357,594,431,732.66
  5. Step 5: Solve for x
    x = 357,594,431,732.66/489,816.10
  6. Step 6: Final answer
    x = 730,058.55

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Similar ratio
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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.