Home / 710,144.13-979,983.75-387,855.51

Finding the Fourth Proportional to 710,144.13, 979,983.75 and 387,855.51

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Solution

The fourth proportional to 710,144.13, 979,983.75 and 387,855.51 is: 535,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,144.13 : 979,983.75 = 387,855.51 : x
  2. Step 2: Convert to fraction form
    710,144.13/979,983.75 = 387,855.51/x
  3. Step 3: Cross multiply
    710,144.13x = 979,983.75 × 387,855.51
  4. Step 4: Simplify right side
    710,144.13x = 380,092,097,147.96
  5. Step 5: Solve for x
    x = 380,092,097,147.96/710,144.13
  6. Step 6: Final answer
    x = 535,232.33

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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.