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Finding the Fourth Proportional to 438,885.20, 657,890.40 and 201,814.40

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Solution

The fourth proportional to 438,885.20, 657,890.40 and 201,814.40 is: 302,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,885.20 : 657,890.40 = 201,814.40 : x
  2. Step 2: Convert to fraction form
    438,885.20/657,890.40 = 201,814.40/x
  3. Step 3: Cross multiply
    438,885.20x = 657,890.40 × 201,814.40
  4. Step 4: Simplify right side
    438,885.20x = 132,771,756,341.76
  5. Step 5: Solve for x
    x = 132,771,756,341.76/438,885.20
  6. Step 6: Final answer
    x = 302,520.47

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