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Finding the Fourth Proportional to 439,018.36, 657,452.74 and 362,649.64

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Solution

The fourth proportional to 439,018.36, 657,452.74 and 362,649.64 is: 543,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,018.36 : 657,452.74 = 362,649.64 : x
  2. Step 2: Convert to fraction form
    439,018.36/657,452.74 = 362,649.64/x
  3. Step 3: Cross multiply
    439,018.36x = 657,452.74 × 362,649.64
  4. Step 4: Simplify right side
    439,018.36x = 238,424,999,478.01
  5. Step 5: Solve for x
    x = 238,424,999,478.01/439,018.36
  6. Step 6: Final answer
    x = 543,086.63

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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.