Home / 500,777.30-691,312.14-285,875.84

Finding the Fourth Proportional to 500,777.30, 691,312.14 and 285,875.84

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Solution

The fourth proportional to 500,777.30, 691,312.14 and 285,875.84 is: 394,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,777.30 : 691,312.14 = 285,875.84 : x
  2. Step 2: Convert to fraction form
    500,777.30/691,312.14 = 285,875.84/x
  3. Step 3: Cross multiply
    500,777.30x = 691,312.14 × 285,875.84
  4. Step 4: Simplify right side
    500,777.30x = 197,629,435,268.14
  5. Step 5: Solve for x
    x = 197,629,435,268.14/500,777.30
  6. Step 6: Final answer
    x = 394,645.36

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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.