Home / 489,890.13-734,921.30-223,677.55

Finding the Fourth Proportional to 489,890.13, 734,921.30 and 223,677.55

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Solution

The fourth proportional to 489,890.13, 734,921.30 and 223,677.55 is: 335,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,890.13 : 734,921.30 = 223,677.55 : x
  2. Step 2: Convert to fraction form
    489,890.13/734,921.30 = 223,677.55/x
  3. Step 3: Cross multiply
    489,890.13x = 734,921.30 × 223,677.55
  4. Step 4: Simplify right side
    489,890.13x = 164,385,397,304.66
  5. Step 5: Solve for x
    x = 164,385,397,304.66/489,890.13
  6. Step 6: Final answer
    x = 335,555.65

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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.