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Finding the Fourth Proportional to 638,495.01, 881,162.82 and 352,014.66

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Solution

The fourth proportional to 638,495.01, 881,162.82 and 352,014.66 is: 485,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,495.01 : 881,162.82 = 352,014.66 : x
  2. Step 2: Convert to fraction form
    638,495.01/881,162.82 = 352,014.66/x
  3. Step 3: Cross multiply
    638,495.01x = 881,162.82 × 352,014.66
  4. Step 4: Simplify right side
    638,495.01x = 310,182,230,486.94
  5. Step 5: Solve for x
    x = 310,182,230,486.94/638,495.01
  6. Step 6: Final answer
    x = 485,802.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.