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Finding the Fourth Proportional to 414,716.80, 620,908.80 and 372,726.40

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Solution

The fourth proportional to 414,716.80, 620,908.80 and 372,726.40 is: 558,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,716.80 : 620,908.80 = 372,726.40 : x
  2. Step 2: Convert to fraction form
    414,716.80/620,908.80 = 372,726.40/x
  3. Step 3: Cross multiply
    414,716.80x = 620,908.80 × 372,726.40
  4. Step 4: Simplify right side
    414,716.80x = 231,429,101,752.32
  5. Step 5: Solve for x
    x = 231,429,101,752.32/414,716.80
  6. Step 6: Final answer
    x = 558,041.30

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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.