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Finding the Fourth Proportional to 617,589.80, 926,427.90 and 243,564.20

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Solution

The fourth proportional to 617,589.80, 926,427.90 and 243,564.20 is: 365,363.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,589.80 : 926,427.90 = 243,564.20 : x
  2. Step 2: Convert to fraction form
    617,589.80/926,427.90 = 243,564.20/x
  3. Step 3: Cross multiply
    617,589.80x = 926,427.90 × 243,564.20
  4. Step 4: Simplify right side
    617,589.80x = 225,644,670,321.18
  5. Step 5: Solve for x
    x = 225,644,670,321.18/617,589.80
  6. Step 6: Final answer
    x = 365,363.34

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1.5x scale

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.