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Finding the Fourth Proportional to 638,003.63, 955,429.75 and 475,508.08

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Solution

The fourth proportional to 638,003.63, 955,429.75 and 475,508.08 is: 712,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,003.63 : 955,429.75 = 475,508.08 : x
  2. Step 2: Convert to fraction form
    638,003.63/955,429.75 = 475,508.08/x
  3. Step 3: Cross multiply
    638,003.63x = 955,429.75 × 475,508.08
  4. Step 4: Simplify right side
    638,003.63x = 454,314,562,420.04
  5. Step 5: Solve for x
    x = 454,314,562,420.04/638,003.63
  6. Step 6: Final answer
    x = 712,087.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.