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Finding the Fourth Proportional to 477,720.60, 716,465.61 and 140,669.61

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Solution

The fourth proportional to 477,720.60, 716,465.61 and 140,669.61 is: 210,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,720.60 : 716,465.61 = 140,669.61 : x
  2. Step 2: Convert to fraction form
    477,720.60/716,465.61 = 140,669.61/x
  3. Step 3: Cross multiply
    477,720.60x = 716,465.61 × 140,669.61
  4. Step 4: Simplify right side
    477,720.60x = 100,784,937,937.11
  5. Step 5: Solve for x
    x = 100,784,937,937.11/477,720.60
  6. Step 6: Final answer
    x = 210,970.47

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