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Finding the Fourth Proportional to 328,425.90, 492,055.65 and 307,430.70

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Solution

The fourth proportional to 328,425.90, 492,055.65 and 307,430.70 is: 460,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,425.90 : 492,055.65 = 307,430.70 : x
  2. Step 2: Convert to fraction form
    328,425.90/492,055.65 = 307,430.70/x
  3. Step 3: Cross multiply
    328,425.90x = 492,055.65 × 307,430.70
  4. Step 4: Simplify right side
    328,425.90x = 151,273,012,918.46
  5. Step 5: Solve for x
    x = 151,273,012,918.46/328,425.90
  6. Step 6: Final answer
    x = 460,600.13

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