Home / 571,212.29-855,976.14-318,144.20

Finding the Fourth Proportional to 571,212.29, 855,976.14 and 318,144.20

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Solution

The fourth proportional to 571,212.29, 855,976.14 and 318,144.20 is: 476,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,212.29 : 855,976.14 = 318,144.20 : x
  2. Step 2: Convert to fraction form
    571,212.29/855,976.14 = 318,144.20/x
  3. Step 3: Cross multiply
    571,212.29x = 855,976.14 × 318,144.20
  4. Step 4: Simplify right side
    571,212.29x = 272,323,839,999.51
  5. Step 5: Solve for x
    x = 272,323,839,999.51/571,212.29
  6. Step 6: Final answer
    x = 476,747.16

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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.