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Finding the Fourth Proportional to 617,486.40, 926,229.60 and 243,460.80

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Solution

The fourth proportional to 617,486.40, 926,229.60 and 243,460.80 is: 365,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,486.40 : 926,229.60 = 243,460.80 : x
  2. Step 2: Convert to fraction form
    617,486.40/926,229.60 = 243,460.80/x
  3. Step 3: Cross multiply
    617,486.40x = 926,229.60 × 243,460.80
  4. Step 4: Simplify right side
    617,486.40x = 225,500,599,399.68
  5. Step 5: Solve for x
    x = 225,500,599,399.68/617,486.40
  6. Step 6: Final answer
    x = 365,191.20

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Similar ratio
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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.