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Finding the Fourth Proportional to 437,832.36, 655,301.48 and 398,488.23

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Solution

The fourth proportional to 437,832.36, 655,301.48 and 398,488.23 is: 596,415.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,832.36 : 655,301.48 = 398,488.23 : x
  2. Step 2: Convert to fraction form
    437,832.36/655,301.48 = 398,488.23/x
  3. Step 3: Cross multiply
    437,832.36x = 655,301.48 × 398,488.23
  4. Step 4: Simplify right side
    437,832.36x = 261,129,924,889.14
  5. Step 5: Solve for x
    x = 261,129,924,889.14/437,832.36
  6. Step 6: Final answer
    x = 596,415.31

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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.