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Finding the Fourth Proportional to 481,459.95, 665,106.75 and 384,536.52

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Solution

The fourth proportional to 481,459.95, 665,106.75 and 384,536.52 is: 531,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,459.95 : 665,106.75 = 384,536.52 : x
  2. Step 2: Convert to fraction form
    481,459.95/665,106.75 = 384,536.52/x
  3. Step 3: Cross multiply
    481,459.95x = 665,106.75 × 384,536.52
  4. Step 4: Simplify right side
    481,459.95x = 255,757,835,073.51
  5. Step 5: Solve for x
    x = 255,757,835,073.51/481,459.95
  6. Step 6: Final answer
    x = 531,213.11

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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.