Home / 489,724.20-734,240.70-223,612.20

Finding the Fourth Proportional to 489,724.20, 734,240.70 and 223,612.20

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Solution

The fourth proportional to 489,724.20, 734,240.70 and 223,612.20 is: 335,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,724.20 : 734,240.70 = 223,612.20 : x
  2. Step 2: Convert to fraction form
    489,724.20/734,240.70 = 223,612.20/x
  3. Step 3: Cross multiply
    489,724.20x = 734,240.70 × 223,612.20
  4. Step 4: Simplify right side
    489,724.20x = 164,185,178,256.54
  5. Step 5: Solve for x
    x = 164,185,178,256.54/489,724.20
  6. Step 6: Final answer
    x = 335,260.50

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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.