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Finding the Fourth Proportional to 670,238.88, 924,906.24 and 368,430.72

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Solution

The fourth proportional to 670,238.88, 924,906.24 and 368,430.72 is: 508,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,238.88 : 924,906.24 = 368,430.72 : x
  2. Step 2: Convert to fraction form
    670,238.88/924,906.24 = 368,430.72/x
  3. Step 3: Cross multiply
    670,238.88x = 924,906.24 × 368,430.72
  4. Step 4: Simplify right side
    670,238.88x = 340,763,871,935.69
  5. Step 5: Solve for x
    x = 340,763,871,935.69/670,238.88
  6. Step 6: Final answer
    x = 508,421.52

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