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Finding the Fourth Proportional to 562,828.80, 776,703.42 and 308,179.92

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Solution

The fourth proportional to 562,828.80, 776,703.42 and 308,179.92 is: 425,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,828.80 : 776,703.42 = 308,179.92 : x
  2. Step 2: Convert to fraction form
    562,828.80/776,703.42 = 308,179.92/x
  3. Step 3: Cross multiply
    562,828.80x = 776,703.42 × 308,179.92
  4. Step 4: Simplify right side
    562,828.80x = 239,364,397,839.33
  5. Step 5: Solve for x
    x = 239,364,397,839.33/562,828.80
  6. Step 6: Final answer
    x = 425,288.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.