Home / 605,313.29-835,132.38-390,596.06

Finding the Fourth Proportional to 605,313.29, 835,132.38 and 390,596.06

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Solution

The fourth proportional to 605,313.29, 835,132.38 and 390,596.06 is: 538,893.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,313.29 : 835,132.38 = 390,596.06 : x
  2. Step 2: Convert to fraction form
    605,313.29/835,132.38 = 390,596.06/x
  3. Step 3: Cross multiply
    605,313.29x = 835,132.38 × 390,596.06
  4. Step 4: Simplify right side
    605,313.29x = 326,199,413,030.76
  5. Step 5: Solve for x
    x = 326,199,413,030.76/605,313.29
  6. Step 6: Final answer
    x = 538,893.53

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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.