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Finding the Fourth Proportional to 531,408.40, 733,605.41 and 368,188.69

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Solution

The fourth proportional to 531,408.40, 733,605.41 and 368,188.69 is: 508,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,408.40 : 733,605.41 = 368,188.69 : x
  2. Step 2: Convert to fraction form
    531,408.40/733,605.41 = 368,188.69/x
  3. Step 3: Cross multiply
    531,408.40x = 733,605.41 × 368,188.69
  4. Step 4: Simplify right side
    531,408.40x = 270,105,213,275.72
  5. Step 5: Solve for x
    x = 270,105,213,275.72/531,408.40
  6. Step 6: Final answer
    x = 508,281.79

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Double scale
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1.5x scale

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.