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Finding the Fourth Proportional to 432,780.42, 597,403.65 and 387,378.30

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Solution

The fourth proportional to 432,780.42, 597,403.65 and 387,378.30 is: 534,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,780.42 : 597,403.65 = 387,378.30 : x
  2. Step 2: Convert to fraction form
    432,780.42/597,403.65 = 387,378.30/x
  3. Step 3: Cross multiply
    432,780.42x = 597,403.65 × 387,378.30
  4. Step 4: Simplify right side
    432,780.42x = 231,421,210,683.33
  5. Step 5: Solve for x
    x = 231,421,210,683.33/432,780.42
  6. Step 6: Final answer
    x = 534,731.24

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