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Finding the Fourth Proportional to 488,459.40, 731,814.30 and 432,472.20

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Solution

The fourth proportional to 488,459.40, 731,814.30 and 432,472.20 is: 647,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,459.40 : 731,814.30 = 432,472.20 : x
  2. Step 2: Convert to fraction form
    488,459.40/731,814.30 = 432,472.20/x
  3. Step 3: Cross multiply
    488,459.40x = 731,814.30 × 432,472.20
  4. Step 4: Simplify right side
    488,459.40x = 316,489,340,312.46
  5. Step 5: Solve for x
    x = 316,489,340,312.46/488,459.40
  6. Step 6: Final answer
    x = 647,933.77

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