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Finding the Fourth Proportional to 518,599.80, 777,588.54 and 202,680.36

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Solution

The fourth proportional to 518,599.80, 777,588.54 and 202,680.36 is: 303,898.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,599.80 : 777,588.54 = 202,680.36 : x
  2. Step 2: Convert to fraction form
    518,599.80/777,588.54 = 202,680.36/x
  3. Step 3: Cross multiply
    518,599.80x = 777,588.54 × 202,680.36
  4. Step 4: Simplify right side
    518,599.80x = 157,601,925,219.07
  5. Step 5: Solve for x
    x = 157,601,925,219.07/518,599.80
  6. Step 6: Final answer
    x = 303,898.93

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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.