Home / 825,290.13-1,238,121.90-292,811.79

Finding the Fourth Proportional to 825,290.13, 1,238,121.90 and 292,811.79

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Solution

The fourth proportional to 825,290.13, 1,238,121.90 and 292,811.79 is: 439,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,290.13 : 1,238,121.90 = 292,811.79 : x
  2. Step 2: Convert to fraction form
    825,290.13/1,238,121.90 = 292,811.79/x
  3. Step 3: Cross multiply
    825,290.13x = 1,238,121.90 × 292,811.79
  4. Step 4: Simplify right side
    825,290.13x = 362,536,689,777.20
  5. Step 5: Solve for x
    x = 362,536,689,777.20/825,290.13
  6. Step 6: Final answer
    x = 439,283.93

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1.5x scale

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.