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Finding the Fourth Proportional to 617,588.20, 926,468.70 and 262,599.40

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Solution

The fourth proportional to 617,588.20, 926,468.70 and 262,599.40 is: 393,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,588.20 : 926,468.70 = 262,599.40 : x
  2. Step 2: Convert to fraction form
    617,588.20/926,468.70 = 262,599.40/x
  3. Step 3: Cross multiply
    617,588.20x = 926,468.70 × 262,599.40
  4. Step 4: Simplify right side
    617,588.20x = 243,290,124,738.78
  5. Step 5: Solve for x
    x = 243,290,124,738.78/617,588.20
  6. Step 6: Final answer
    x = 393,935.84

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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.