Home / 757,778.82-1,045,660.32-418,225.20

Finding the Fourth Proportional to 757,778.82, 1,045,660.32 and 418,225.20

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Solution

The fourth proportional to 757,778.82, 1,045,660.32 and 418,225.20 is: 577,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,778.82 : 1,045,660.32 = 418,225.20 : x
  2. Step 2: Convert to fraction form
    757,778.82/1,045,660.32 = 418,225.20/x
  3. Step 3: Cross multiply
    757,778.82x = 1,045,660.32 × 418,225.20
  4. Step 4: Simplify right side
    757,778.82x = 437,321,496,464.06
  5. Step 5: Solve for x
    x = 437,321,496,464.06/757,778.82
  6. Step 6: Final answer
    x = 577,109.69

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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.