Home / 1,217,831.72-1,680,610.97-674,005.01

Finding the Fourth Proportional to 1,217,831.72, 1,680,610.97 and 674,005.01

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Solution

The fourth proportional to 1,217,831.72, 1,680,610.97 and 674,005.01 is: 930,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,831.72 : 1,680,610.97 = 674,005.01 : x
  2. Step 2: Convert to fraction form
    1,217,831.72/1,680,610.97 = 674,005.01/x
  3. Step 3: Cross multiply
    1,217,831.72x = 1,680,610.97 × 674,005.01
  4. Step 4: Simplify right side
    1,217,831.72x = 1,132,740,210,270.93
  5. Step 5: Solve for x
    x = 1,132,740,210,270.93/1,217,831.72
  6. Step 6: Final answer
    x = 930,128.68

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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.