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Finding the Fourth Proportional to 439,831.60, 659,747.40 and 439,831.60

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Solution

The fourth proportional to 439,831.60, 659,747.40 and 439,831.60 is: 659,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,831.60 : 659,747.40 = 439,831.60 : x
  2. Step 2: Convert to fraction form
    439,831.60/659,747.40 = 439,831.60/x
  3. Step 3: Cross multiply
    439,831.60x = 659,747.40 × 439,831.60
  4. Step 4: Simplify right side
    439,831.60x = 290,177,754,537.84
  5. Step 5: Solve for x
    x = 290,177,754,537.84/439,831.60
  6. Step 6: Final answer
    x = 659,747.40

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1.5x scale

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.