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Finding the Fourth Proportional to 520,020, 778,776.12 and 253,118.52

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Solution

The fourth proportional to 520,020, 778,776.12 and 253,118.52 is: 379,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,020 : 778,776.12 = 253,118.52 : x
  2. Step 2: Convert to fraction form
    520,020/778,776.12 = 253,118.52/x
  3. Step 3: Cross multiply
    520,020x = 778,776.12 × 253,118.52
  4. Step 4: Simplify right side
    520,020x = 197,122,658,905.74
  5. Step 5: Solve for x
    x = 197,122,658,905.74/520,020
  6. Step 6: Final answer
    x = 379,067.46

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