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Finding the Fourth Proportional to 617,658.80, 926,833.80 and 262,612.40

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Solution

The fourth proportional to 617,658.80, 926,833.80 and 262,612.40 is: 394,065.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,658.80 : 926,833.80 = 262,612.40 : x
  2. Step 2: Convert to fraction form
    617,658.80/926,833.80 = 262,612.40/x
  3. Step 3: Cross multiply
    617,658.80x = 926,833.80 × 262,612.40
  4. Step 4: Simplify right side
    617,658.80x = 243,398,048,619.12
  5. Step 5: Solve for x
    x = 243,398,048,619.12/617,658.80
  6. Step 6: Final answer
    x = 394,065.54

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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.