Home / 724,878.11-1,087,040.15-238,447.09

Finding the Fourth Proportional to 724,878.11, 1,087,040.15 and 238,447.09

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Solution

The fourth proportional to 724,878.11, 1,087,040.15 and 238,447.09 is: 357,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,878.11 : 1,087,040.15 = 238,447.09 : x
  2. Step 2: Convert to fraction form
    724,878.11/1,087,040.15 = 238,447.09/x
  3. Step 3: Cross multiply
    724,878.11x = 1,087,040.15 × 238,447.09
  4. Step 4: Simplify right side
    724,878.11x = 259,201,561,541.41
  5. Step 5: Solve for x
    x = 259,201,561,541.41/724,878.11
  6. Step 6: Final answer
    x = 357,579.51

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Double scale
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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.