Home / 489,835.29-734,839.05-223,622.72

Finding the Fourth Proportional to 489,835.29, 734,839.05 and 223,622.72

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Solution

The fourth proportional to 489,835.29, 734,839.05 and 223,622.72 is: 335,473.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,835.29 : 734,839.05 = 223,622.72 : x
  2. Step 2: Convert to fraction form
    489,835.29/734,839.05 = 223,622.72/x
  3. Step 3: Cross multiply
    489,835.29x = 734,839.05 × 223,622.72
  4. Step 4: Simplify right side
    489,835.29x = 164,326,703,449.02
  5. Step 5: Solve for x
    x = 164,326,703,449.02/489,835.29
  6. Step 6: Final answer
    x = 335,473.39

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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.