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Finding the Fourth Proportional to 581,367.78, 801,787.95 and 377,217.54

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Solution

The fourth proportional to 581,367.78, 801,787.95 and 377,217.54 is: 520,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,367.78 : 801,787.95 = 377,217.54 : x
  2. Step 2: Convert to fraction form
    581,367.78/801,787.95 = 377,217.54/x
  3. Step 3: Cross multiply
    581,367.78x = 801,787.95 × 377,217.54
  4. Step 4: Simplify right side
    581,367.78x = 302,448,478,100.64
  5. Step 5: Solve for x
    x = 302,448,478,100.64/581,367.78
  6. Step 6: Final answer
    x = 520,236.05

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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.