Home / 724,719.16-1,087,212.38-238,428.69

Finding the Fourth Proportional to 724,719.16, 1,087,212.38 and 238,428.69

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Solution

The fourth proportional to 724,719.16, 1,087,212.38 and 238,428.69 is: 357,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,719.16 : 1,087,212.38 = 238,428.69 : x
  2. Step 2: Convert to fraction form
    724,719.16/1,087,212.38 = 238,428.69/x
  3. Step 3: Cross multiply
    724,719.16x = 1,087,212.38 × 238,428.69
  4. Step 4: Simplify right side
    724,719.16x = 259,222,618,079.12
  5. Step 5: Solve for x
    x = 259,222,618,079.12/724,719.16
  6. Step 6: Final answer
    x = 357,686.99

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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.