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Finding the Fourth Proportional to 617,967.70, 926,260.35 and 262,921.30

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Solution

The fourth proportional to 617,967.70, 926,260.35 and 262,921.30 is: 394,087.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,967.70 : 926,260.35 = 262,921.30 : x
  2. Step 2: Convert to fraction form
    617,967.70/926,260.35 = 262,921.30/x
  3. Step 3: Cross multiply
    617,967.70x = 926,260.35 × 262,921.30
  4. Step 4: Simplify right side
    617,967.70x = 243,533,575,360.46
  5. Step 5: Solve for x
    x = 243,533,575,360.46/617,967.70
  6. Step 6: Final answer
    x = 394,087.87

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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.