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Finding the Fourth Proportional to 586,429.40, 878,607.30 and 520,074.20

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Solution

The fourth proportional to 586,429.40, 878,607.30 and 520,074.20 is: 779,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,429.40 : 878,607.30 = 520,074.20 : x
  2. Step 2: Convert to fraction form
    586,429.40/878,607.30 = 520,074.20/x
  3. Step 3: Cross multiply
    586,429.40x = 878,607.30 × 520,074.20
  4. Step 4: Simplify right side
    586,429.40x = 456,940,988,661.66
  5. Step 5: Solve for x
    x = 456,940,988,661.66/586,429.40
  6. Step 6: Final answer
    x = 779,191.82

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