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Finding the Fourth Proportional to 516,054.20, 712,155.50 and 289,701.32

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Solution

The fourth proportional to 516,054.20, 712,155.50 and 289,701.32 is: 399,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,054.20 : 712,155.50 = 289,701.32 : x
  2. Step 2: Convert to fraction form
    516,054.20/712,155.50 = 289,701.32/x
  3. Step 3: Cross multiply
    516,054.20x = 712,155.50 × 289,701.32
  4. Step 4: Simplify right side
    516,054.20x = 206,312,388,395.26
  5. Step 5: Solve for x
    x = 206,312,388,395.26/516,054.20
  6. Step 6: Final answer
    x = 399,788.22

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