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Finding the Fourth Proportional to 439,015.34, 657,448.22 and 362,646.66

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Solution

The fourth proportional to 439,015.34, 657,448.22 and 362,646.66 is: 543,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,015.34 : 657,448.22 = 362,646.66 : x
  2. Step 2: Convert to fraction form
    439,015.34/657,448.22 = 362,646.66/x
  3. Step 3: Cross multiply
    439,015.34x = 657,448.22 × 362,646.66
  4. Step 4: Simplify right side
    439,015.34x = 238,421,401,105.95
  5. Step 5: Solve for x
    x = 238,421,401,105.95/439,015.34
  6. Step 6: Final answer
    x = 543,082.16

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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.