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Finding the Fourth Proportional to 617,604.20, 926,492.70 and 262,615.40

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Solution

The fourth proportional to 617,604.20, 926,492.70 and 262,615.40 is: 393,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,604.20 : 926,492.70 = 262,615.40 : x
  2. Step 2: Convert to fraction form
    617,604.20/926,492.70 = 262,615.40/x
  3. Step 3: Cross multiply
    617,604.20x = 926,492.70 × 262,615.40
  4. Step 4: Simplify right side
    617,604.20x = 243,311,251,007.58
  5. Step 5: Solve for x
    x = 243,311,251,007.58/617,604.20
  6. Step 6: Final answer
    x = 393,959.84

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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.