Home / 842,126.15-1,263,689.51-310,020.85

Finding the Fourth Proportional to 842,126.15, 1,263,689.51 and 310,020.85

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Solution

The fourth proportional to 842,126.15, 1,263,689.51 and 310,020.85 is: 465,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,126.15 : 1,263,689.51 = 310,020.85 : x
  2. Step 2: Convert to fraction form
    842,126.15/1,263,689.51 = 310,020.85/x
  3. Step 3: Cross multiply
    842,126.15x = 1,263,689.51 × 310,020.85
  4. Step 4: Simplify right side
    842,126.15x = 391,770,096,055.79
  5. Step 5: Solve for x
    x = 391,770,096,055.79/842,126.15
  6. Step 6: Final answer
    x = 465,215.45

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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.