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Finding the Fourth Proportional to 708,336.90, 977,476.21 and 386,039.93

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Solution

The fourth proportional to 708,336.90, 977,476.21 and 386,039.93 is: 532,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,336.90 : 977,476.21 = 386,039.93 : x
  2. Step 2: Convert to fraction form
    708,336.90/977,476.21 = 386,039.93/x
  3. Step 3: Cross multiply
    708,336.90x = 977,476.21 × 386,039.93
  4. Step 4: Simplify right side
    708,336.90x = 377,344,841,832.58
  5. Step 5: Solve for x
    x = 377,344,841,832.58/708,336.90
  6. Step 6: Final answer
    x = 532,719.45

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