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Finding the Fourth Proportional to 618,953.40, 928,506.24 and 239,880.42

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Solution

The fourth proportional to 618,953.40, 928,506.24 and 239,880.42 is: 359,850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,953.40 : 928,506.24 = 239,880.42 : x
  2. Step 2: Convert to fraction form
    618,953.40/928,506.24 = 239,880.42/x
  3. Step 3: Cross multiply
    618,953.40x = 928,506.24 × 239,880.42
  4. Step 4: Simplify right side
    618,953.40x = 222,730,466,823.82
  5. Step 5: Solve for x
    x = 222,730,466,823.82/618,953.40
  6. Step 6: Final answer
    x = 359,850.14

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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.