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Finding the Fourth Proportional to 553,734.20, 830,601.30 and 548,485.40

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Solution

The fourth proportional to 553,734.20, 830,601.30 and 548,485.40 is: 822,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,734.20 : 830,601.30 = 548,485.40 : x
  2. Step 2: Convert to fraction form
    553,734.20/830,601.30 = 548,485.40/x
  3. Step 3: Cross multiply
    553,734.20x = 830,601.30 × 548,485.40
  4. Step 4: Simplify right side
    553,734.20x = 455,572,686,271.02
  5. Step 5: Solve for x
    x = 455,572,686,271.02/553,734.20
  6. Step 6: Final answer
    x = 822,728.10

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