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Finding the Fourth Proportional to 543,007.60, 749,159.91 and 313,558.36

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Solution

The fourth proportional to 543,007.60, 749,159.91 and 313,558.36 is: 432,600.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,007.60 : 749,159.91 = 313,558.36 : x
  2. Step 2: Convert to fraction form
    543,007.60/749,159.91 = 313,558.36/x
  3. Step 3: Cross multiply
    543,007.60x = 749,159.91 × 313,558.36
  4. Step 4: Simplify right side
    543,007.60x = 234,905,352,757.35
  5. Step 5: Solve for x
    x = 234,905,352,757.35/543,007.60
  6. Step 6: Final answer
    x = 432,600.49

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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.