Home / 555,071.06-766,000.41-300,422.25

Finding the Fourth Proportional to 555,071.06, 766,000.41 and 300,422.25

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Solution

The fourth proportional to 555,071.06, 766,000.41 and 300,422.25 is: 414,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,071.06 : 766,000.41 = 300,422.25 : x
  2. Step 2: Convert to fraction form
    555,071.06/766,000.41 = 300,422.25/x
  3. Step 3: Cross multiply
    555,071.06x = 766,000.41 × 300,422.25
  4. Step 4: Simplify right side
    555,071.06x = 230,123,565,546.54
  5. Step 5: Solve for x
    x = 230,123,565,546.54/555,071.06
  6. Step 6: Final answer
    x = 414,583.97

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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.