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Finding the Fourth Proportional to 710,970.40, 1,066,916.40 and 411,450.40

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Solution

The fourth proportional to 710,970.40, 1,066,916.40 and 411,450.40 is: 617,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,970.40 : 1,066,916.40 = 411,450.40 : x
  2. Step 2: Convert to fraction form
    710,970.40/1,066,916.40 = 411,450.40/x
  3. Step 3: Cross multiply
    710,970.40x = 1,066,916.40 × 411,450.40
  4. Step 4: Simplify right side
    710,970.40x = 438,983,179,546.56
  5. Step 5: Solve for x
    x = 438,983,179,546.56/710,970.40
  6. Step 6: Final answer
    x = 617,442.27

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