Home / 438,498.20-657,920.10-172,213.40

Finding the Fourth Proportional to 438,498.20, 657,920.10 and 172,213.40

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Solution

The fourth proportional to 438,498.20, 657,920.10 and 172,213.40 is: 258,387.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,498.20 : 657,920.10 = 172,213.40 : x
  2. Step 2: Convert to fraction form
    438,498.20/657,920.10 = 172,213.40/x
  3. Step 3: Cross multiply
    438,498.20x = 657,920.10 × 172,213.40
  4. Step 4: Simplify right side
    438,498.20x = 113,302,657,349.34
  5. Step 5: Solve for x
    x = 113,302,657,349.34/438,498.20
  6. Step 6: Final answer
    x = 258,387.96

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