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Finding the Fourth Proportional to 534,639.48, 737,766 and 313,949.40

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Solution

The fourth proportional to 534,639.48, 737,766 and 313,949.40 is: 433,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,639.48 : 737,766 = 313,949.40 : x
  2. Step 2: Convert to fraction form
    534,639.48/737,766 = 313,949.40/x
  3. Step 3: Cross multiply
    534,639.48x = 737,766 × 313,949.40
  4. Step 4: Simplify right side
    534,639.48x = 231,621,193,040.40
  5. Step 5: Solve for x
    x = 231,621,193,040.40/534,639.48
  6. Step 6: Final answer
    x = 433,228.75

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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.