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Finding the Fourth Proportional to 647,367.33, 893,420.08 and 357,035.68

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Solution

The fourth proportional to 647,367.33, 893,420.08 and 357,035.68 is: 492,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,367.33 : 893,420.08 = 357,035.68 : x
  2. Step 2: Convert to fraction form
    647,367.33/893,420.08 = 357,035.68/x
  3. Step 3: Cross multiply
    647,367.33x = 893,420.08 × 357,035.68
  4. Step 4: Simplify right side
    647,367.33x = 318,982,845,788.45
  5. Step 5: Solve for x
    x = 318,982,845,788.45/647,367.33
  6. Step 6: Final answer
    x = 492,738.56

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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.