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Finding the Fourth Proportional to 565,646.36, 780,607.36 and 307,540.68

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Solution

The fourth proportional to 565,646.36, 780,607.36 and 307,540.68 is: 424,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,646.36 : 780,607.36 = 307,540.68 : x
  2. Step 2: Convert to fraction form
    565,646.36/780,607.36 = 307,540.68/x
  3. Step 3: Cross multiply
    565,646.36x = 780,607.36 × 307,540.68
  4. Step 4: Simplify right side
    565,646.36x = 240,068,518,307.41
  5. Step 5: Solve for x
    x = 240,068,518,307.41/565,646.36
  6. Step 6: Final answer
    x = 424,414.50

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