Home / 489,891.13-734,922.80-223,678.55

Finding the Fourth Proportional to 489,891.13, 734,922.80 and 223,678.55

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Solution

The fourth proportional to 489,891.13, 734,922.80 and 223,678.55 is: 335,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,891.13 : 734,922.80 = 223,678.55 : x
  2. Step 2: Convert to fraction form
    489,891.13/734,922.80 = 223,678.55/x
  3. Step 3: Cross multiply
    489,891.13x = 734,922.80 × 223,678.55
  4. Step 4: Simplify right side
    489,891.13x = 164,386,466,265.94
  5. Step 5: Solve for x
    x = 164,386,466,265.94/489,891.13
  6. Step 6: Final answer
    x = 335,557.14

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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.