Home / 462,121.20-693,181.80-399,135.60

Finding the Fourth Proportional to 462,121.20, 693,181.80 and 399,135.60

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Solution

The fourth proportional to 462,121.20, 693,181.80 and 399,135.60 is: 598,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,121.20 : 693,181.80 = 399,135.60 : x
  2. Step 2: Convert to fraction form
    462,121.20/693,181.80 = 399,135.60/x
  3. Step 3: Cross multiply
    462,121.20x = 693,181.80 × 399,135.60
  4. Step 4: Simplify right side
    462,121.20x = 276,673,533,652.08
  5. Step 5: Solve for x
    x = 276,673,533,652.08/462,121.20
  6. Step 6: Final answer
    x = 598,703.40

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Similar ratio
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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.