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Finding the Fourth Proportional to 513,722.80, 770,569.80 and 233,239.60

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Solution

The fourth proportional to 513,722.80, 770,569.80 and 233,239.60 is: 349,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,722.80 : 770,569.80 = 233,239.60 : x
  2. Step 2: Convert to fraction form
    513,722.80/770,569.80 = 233,239.60/x
  3. Step 3: Cross multiply
    513,722.80x = 770,569.80 × 233,239.60
  4. Step 4: Simplify right side
    513,722.80x = 179,727,391,924.08
  5. Step 5: Solve for x
    x = 179,727,391,924.08/513,722.80
  6. Step 6: Final answer
    x = 349,852.86

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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.