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Finding the Fourth Proportional to 438,624.45, 605,354.18 and 266,570.43

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Solution

The fourth proportional to 438,624.45, 605,354.18 and 266,570.43 is: 367,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,624.45 : 605,354.18 = 266,570.43 : x
  2. Step 2: Convert to fraction form
    438,624.45/605,354.18 = 266,570.43/x
  3. Step 3: Cross multiply
    438,624.45x = 605,354.18 × 266,570.43
  4. Step 4: Simplify right side
    438,624.45x = 161,369,520,461.97
  5. Step 5: Solve for x
    x = 161,369,520,461.97/438,624.45
  6. Step 6: Final answer
    x = 367,899.05

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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.