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Finding the Fourth Proportional to 703,465.46, 970,831.59 and 397,570.11

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Solution

The fourth proportional to 703,465.46, 970,831.59 and 397,570.11 is: 548,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,465.46 : 970,831.59 = 397,570.11 : x
  2. Step 2: Convert to fraction form
    703,465.46/970,831.59 = 397,570.11/x
  3. Step 3: Cross multiply
    703,465.46x = 970,831.59 × 397,570.11
  4. Step 4: Simplify right side
    703,465.46x = 385,973,622,027.78
  5. Step 5: Solve for x
    x = 385,973,622,027.78/703,465.46
  6. Step 6: Final answer
    x = 548,674.59

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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.