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Finding the Fourth Proportional to 493,386.80, 740,425.80 and 316,324.40

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Solution

The fourth proportional to 493,386.80, 740,425.80 and 316,324.40 is: 474,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,386.80 : 740,425.80 = 316,324.40 : x
  2. Step 2: Convert to fraction form
    493,386.80/740,425.80 = 316,324.40/x
  3. Step 3: Cross multiply
    493,386.80x = 740,425.80 × 316,324.40
  4. Step 4: Simplify right side
    493,386.80x = 234,214,746,929.52
  5. Step 5: Solve for x
    x = 234,214,746,929.52/493,386.80
  6. Step 6: Final answer
    x = 474,708.17

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