Home / 489,983.40-734,586.30-268,367.40

Finding the Fourth Proportional to 489,983.40, 734,586.30 and 268,367.40

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Solution

The fourth proportional to 489,983.40, 734,586.30 and 268,367.40 is: 402,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,983.40 : 734,586.30 = 268,367.40 : x
  2. Step 2: Convert to fraction form
    489,983.40/734,586.30 = 268,367.40/x
  3. Step 3: Cross multiply
    489,983.40x = 734,586.30 × 268,367.40
  4. Step 4: Simplify right side
    489,983.40x = 197,139,015,406.62
  5. Step 5: Solve for x
    x = 197,139,015,406.62/489,983.40
  6. Step 6: Final answer
    x = 402,338.15

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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.