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Finding the Fourth Proportional to 723,507.21, 998,782.79 and 482,192.01

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Solution

The fourth proportional to 723,507.21, 998,782.79 and 482,192.01 is: 665,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,507.21 : 998,782.79 = 482,192.01 : x
  2. Step 2: Convert to fraction form
    723,507.21/998,782.79 = 482,192.01/x
  3. Step 3: Cross multiply
    723,507.21x = 998,782.79 × 482,192.01
  4. Step 4: Simplify right side
    723,507.21x = 481,605,078,652.55
  5. Step 5: Solve for x
    x = 481,605,078,652.55/723,507.21
  6. Step 6: Final answer
    x = 665,653.46

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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.