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Finding the Fourth Proportional to 553,809.69, 830,702.61 and 154,439.82

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Solution

The fourth proportional to 553,809.69, 830,702.61 and 154,439.82 is: 231,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,809.69 : 830,702.61 = 154,439.82 : x
  2. Step 2: Convert to fraction form
    553,809.69/830,702.61 = 154,439.82/x
  3. Step 3: Cross multiply
    553,809.69x = 830,702.61 × 154,439.82
  4. Step 4: Simplify right side
    553,809.69x = 128,293,561,561.93
  5. Step 5: Solve for x
    x = 128,293,561,561.93/553,809.69
  6. Step 6: Final answer
    x = 231,656.40

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