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Finding the Fourth Proportional to 489,937.59, 734,532.59 and 223,511.78

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Solution

The fourth proportional to 489,937.59, 734,532.59 and 223,511.78 is: 335,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,937.59 : 734,532.59 = 223,511.78 : x
  2. Step 2: Convert to fraction form
    489,937.59/734,532.59 = 223,511.78/x
  3. Step 3: Cross multiply
    489,937.59x = 734,532.59 × 223,511.78
  4. Step 4: Simplify right side
    489,937.59x = 164,176,689,054.02
  5. Step 5: Solve for x
    x = 164,176,689,054.02/489,937.59
  6. Step 6: Final answer
    x = 335,097.15

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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.