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Finding the Fourth Proportional to 543,947.52, 750,415.05 and 339,859.41

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Solution

The fourth proportional to 543,947.52, 750,415.05 and 339,859.41 is: 468,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,947.52 : 750,415.05 = 339,859.41 : x
  2. Step 2: Convert to fraction form
    543,947.52/750,415.05 = 339,859.41/x
  3. Step 3: Cross multiply
    543,947.52x = 750,415.05 × 339,859.41
  4. Step 4: Simplify right side
    543,947.52x = 255,035,616,148.12
  5. Step 5: Solve for x
    x = 255,035,616,148.12/543,947.52
  6. Step 6: Final answer
    x = 468,860.70

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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.