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Finding the Fourth Proportional to 390,602.64, 584,948.47 and 352,737.47

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Solution

The fourth proportional to 390,602.64, 584,948.47 and 352,737.47 is: 528,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,602.64 : 584,948.47 = 352,737.47 : x
  2. Step 2: Convert to fraction form
    390,602.64/584,948.47 = 352,737.47/x
  3. Step 3: Cross multiply
    390,602.64x = 584,948.47 × 352,737.47
  4. Step 4: Simplify right side
    390,602.64x = 206,333,243,388.17
  5. Step 5: Solve for x
    x = 206,333,243,388.17/390,602.64
  6. Step 6: Final answer
    x = 528,243.34

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