Home / 723,190.32-998,002.62-400,899.60

Finding the Fourth Proportional to 723,190.32, 998,002.62 and 400,899.60

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Solution

The fourth proportional to 723,190.32, 998,002.62 and 400,899.60 is: 553,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,190.32 : 998,002.62 = 400,899.60 : x
  2. Step 2: Convert to fraction form
    723,190.32/998,002.62 = 400,899.60/x
  3. Step 3: Cross multiply
    723,190.32x = 998,002.62 × 400,899.60
  4. Step 4: Simplify right side
    723,190.32x = 400,098,851,156.95
  5. Step 5: Solve for x
    x = 400,098,851,156.95/723,190.32
  6. Step 6: Final answer
    x = 553,241.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.