Home / 1,223,288.88-1,688,138.65-686,744.88

Finding the Fourth Proportional to 1,223,288.88, 1,688,138.65 and 686,744.88

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Solution

The fourth proportional to 1,223,288.88, 1,688,138.65 and 686,744.88 is: 947,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,288.88 : 1,688,138.65 = 686,744.88 : x
  2. Step 2: Convert to fraction form
    1,223,288.88/1,688,138.65 = 686,744.88/x
  3. Step 3: Cross multiply
    1,223,288.88x = 1,688,138.65 × 686,744.88
  4. Step 4: Simplify right side
    1,223,288.88x = 1,159,320,574,617.61
  5. Step 5: Solve for x
    x = 1,159,320,574,617.61/1,223,288.88
  6. Step 6: Final answer
    x = 947,707.93

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