Home / 709,180.23-978,649.29-386,890.24

Finding the Fourth Proportional to 709,180.23, 978,649.29 and 386,890.24

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Solution

The fourth proportional to 709,180.23, 978,649.29 and 386,890.24 is: 533,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,180.23 : 978,649.29 = 386,890.24 : x
  2. Step 2: Convert to fraction form
    709,180.23/978,649.29 = 386,890.24/x
  3. Step 3: Cross multiply
    709,180.23x = 978,649.29 × 386,890.24
  4. Step 4: Simplify right side
    709,180.23x = 378,629,858,683.93
  5. Step 5: Solve for x
    x = 378,629,858,683.93/709,180.23
  6. Step 6: Final answer
    x = 533,897.93

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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.