Home / 678,147.29-935,837.35-372,236.51

Finding the Fourth Proportional to 678,147.29, 935,837.35 and 372,236.51

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Solution

The fourth proportional to 678,147.29, 935,837.35 and 372,236.51 is: 513,683.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,147.29 : 935,837.35 = 372,236.51 : x
  2. Step 2: Convert to fraction form
    678,147.29/935,837.35 = 372,236.51/x
  3. Step 3: Cross multiply
    678,147.29x = 935,837.35 × 372,236.51
  4. Step 4: Simplify right side
    678,147.29x = 348,352,830,500.65
  5. Step 5: Solve for x
    x = 348,352,830,500.65/678,147.29
  6. Step 6: Final answer
    x = 513,683.14

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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.