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Finding the Fourth Proportional to 438,857.70, 605,207.61 and 302,674.02

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Solution

The fourth proportional to 438,857.70, 605,207.61 and 302,674.02 is: 417,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,857.70 : 605,207.61 = 302,674.02 : x
  2. Step 2: Convert to fraction form
    438,857.70/605,207.61 = 302,674.02/x
  3. Step 3: Cross multiply
    438,857.70x = 605,207.61 × 302,674.02
  4. Step 4: Simplify right side
    438,857.70x = 183,180,620,253.29
  5. Step 5: Solve for x
    x = 183,180,620,253.29/438,857.70
  6. Step 6: Final answer
    x = 417,403.23

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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.