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Finding the Fourth Proportional to 680,612.76, 1,020,881.88 and 207,258.48

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Solution

The fourth proportional to 680,612.76, 1,020,881.88 and 207,258.48 is: 310,876.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,612.76 : 1,020,881.88 = 207,258.48 : x
  2. Step 2: Convert to fraction form
    680,612.76/1,020,881.88 = 207,258.48/x
  3. Step 3: Cross multiply
    680,612.76x = 1,020,881.88 × 207,258.48
  4. Step 4: Simplify right side
    680,612.76x = 211,586,426,708.34
  5. Step 5: Solve for x
    x = 211,586,426,708.34/680,612.76
  6. Step 6: Final answer
    x = 310,876.37

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