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Finding the Fourth Proportional to 676,656.52, 933,885.42 and 390,120.52

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Solution

The fourth proportional to 676,656.52, 933,885.42 and 390,120.52 is: 538,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,656.52 : 933,885.42 = 390,120.52 : x
  2. Step 2: Convert to fraction form
    676,656.52/933,885.42 = 390,120.52/x
  3. Step 3: Cross multiply
    676,656.52x = 933,885.42 × 390,120.52
  4. Step 4: Simplify right side
    676,656.52x = 364,327,865,670.82
  5. Step 5: Solve for x
    x = 364,327,865,670.82/676,656.52
  6. Step 6: Final answer
    x = 538,423.64

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