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Finding the Fourth Proportional to 477,859.39, 716,892.77 and 145,426.75

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Solution

The fourth proportional to 477,859.39, 716,892.77 and 145,426.75 is: 218,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,859.39 : 716,892.77 = 145,426.75 : x
  2. Step 2: Convert to fraction form
    477,859.39/716,892.77 = 145,426.75/x
  3. Step 3: Cross multiply
    477,859.39x = 716,892.77 × 145,426.75
  4. Step 4: Simplify right side
    477,859.39x = 104,255,385,639.60
  5. Step 5: Solve for x
    x = 104,255,385,639.60/477,859.39
  6. Step 6: Final answer
    x = 218,171.68

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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.