Home / 2,000,831.50-3,000,313.11-721,270.45

Finding the Fourth Proportional to 2,000,831.50, 3,000,313.11 and 721,270.45

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Solution

The fourth proportional to 2,000,831.50, 3,000,313.11 and 721,270.45 is: 1,081,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000,831.50 : 3,000,313.11 = 721,270.45 : x
  2. Step 2: Convert to fraction form
    2,000,831.50/3,000,313.11 = 721,270.45/x
  3. Step 3: Cross multiply
    2,000,831.50x = 3,000,313.11 × 721,270.45
  4. Step 4: Simplify right side
    2,000,831.50x = 2,164,037,179,489.82
  5. Step 5: Solve for x
    x = 2,164,037,179,489.82/2,000,831.50
  6. Step 6: Final answer
    x = 1,081,568.93

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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.