Home / 1,913,255.73-2,870,236.76-791,412.21

Finding the Fourth Proportional to 1,913,255.73, 2,870,236.76 and 791,412.21

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Solution

The fourth proportional to 1,913,255.73, 2,870,236.76 and 791,412.21 is: 1,187,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,255.73 : 2,870,236.76 = 791,412.21 : x
  2. Step 2: Convert to fraction form
    1,913,255.73/2,870,236.76 = 791,412.21/x
  3. Step 3: Cross multiply
    1,913,255.73x = 2,870,236.76 × 791,412.21
  4. Step 4: Simplify right side
    1,913,255.73x = 2,271,540,413,497.78
  5. Step 5: Solve for x
    x = 2,271,540,413,497.78/1,913,255.73
  6. Step 6: Final answer
    x = 1,187,264.40

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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.