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Finding the Fourth Proportional to 861,796.26, 1,189,287.02 and 479,831.24

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Solution

The fourth proportional to 861,796.26, 1,189,287.02 and 479,831.24 is: 662,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,796.26 : 1,189,287.02 = 479,831.24 : x
  2. Step 2: Convert to fraction form
    861,796.26/1,189,287.02 = 479,831.24/x
  3. Step 3: Cross multiply
    861,796.26x = 1,189,287.02 × 479,831.24
  4. Step 4: Simplify right side
    861,796.26x = 570,657,065,522.51
  5. Step 5: Solve for x
    x = 570,657,065,522.51/861,796.26
  6. Step 6: Final answer
    x = 662,171.67

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