Home / 816,071.40-1,222,911.90-731,831.40

Finding the Fourth Proportional to 816,071.40, 1,222,911.90 and 731,831.40

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Solution

The fourth proportional to 816,071.40, 1,222,911.90 and 731,831.40 is: 1,096,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,071.40 : 1,222,911.90 = 731,831.40 : x
  2. Step 2: Convert to fraction form
    816,071.40/1,222,911.90 = 731,831.40/x
  3. Step 3: Cross multiply
    816,071.40x = 1,222,911.90 × 731,831.40
  4. Step 4: Simplify right side
    816,071.40x = 894,965,327,853.66
  5. Step 5: Solve for x
    x = 894,965,327,853.66/816,071.40
  6. Step 6: Final answer
    x = 1,096,675.28

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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.