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Finding the Fourth Proportional to 613,839.25, 920,450.40 and 357,754.24

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Solution

The fourth proportional to 613,839.25, 920,450.40 and 357,754.24 is: 536,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,839.25 : 920,450.40 = 357,754.24 : x
  2. Step 2: Convert to fraction form
    613,839.25/920,450.40 = 357,754.24/x
  3. Step 3: Cross multiply
    613,839.25x = 920,450.40 × 357,754.24
  4. Step 4: Simplify right side
    613,839.25x = 329,295,033,309.70
  5. Step 5: Solve for x
    x = 329,295,033,309.70/613,839.25
  6. Step 6: Final answer
    x = 536,451.58

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1.5x scale

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.