Home / 1,210,831.50-1,669,153.66-775,186.57

Finding the Fourth Proportional to 1,210,831.50, 1,669,153.66 and 775,186.57

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Solution

The fourth proportional to 1,210,831.50, 1,669,153.66 and 775,186.57 is: 1,068,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,831.50 : 1,669,153.66 = 775,186.57 : x
  2. Step 2: Convert to fraction form
    1,210,831.50/1,669,153.66 = 775,186.57/x
  3. Step 3: Cross multiply
    1,210,831.50x = 1,669,153.66 × 775,186.57
  4. Step 4: Simplify right side
    1,210,831.50x = 1,293,905,505,081.48
  5. Step 5: Solve for x
    x = 1,293,905,505,081.48/1,210,831.50
  6. Step 6: Final answer
    x = 1,068,609.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.