Home / 513,356.94-769,976.55-134,314.28

Finding the Fourth Proportional to 513,356.94, 769,976.55 and 134,314.28

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Solution

The fourth proportional to 513,356.94, 769,976.55 and 134,314.28 is: 201,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,356.94 : 769,976.55 = 134,314.28 : x
  2. Step 2: Convert to fraction form
    513,356.94/769,976.55 = 134,314.28/x
  3. Step 3: Cross multiply
    513,356.94x = 769,976.55 × 134,314.28
  4. Step 4: Simplify right side
    513,356.94x = 103,418,842,080.25
  5. Step 5: Solve for x
    x = 103,418,842,080.25/513,356.94
  6. Step 6: Final answer
    x = 201,456.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.