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Finding the Fourth Proportional to 1,985,270.02, 2,976,453.21 and 636,664.96

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Solution

The fourth proportional to 1,985,270.02, 2,976,453.21 and 636,664.96 is: 954,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,270.02 : 2,976,453.21 = 636,664.96 : x
  2. Step 2: Convert to fraction form
    1,985,270.02/2,976,453.21 = 636,664.96/x
  3. Step 3: Cross multiply
    1,985,270.02x = 2,976,453.21 × 636,664.96
  4. Step 4: Simplify right side
    1,985,270.02x = 1,895,003,463,886.52
  5. Step 5: Solve for x
    x = 1,895,003,463,886.52/1,985,270.02
  6. Step 6: Final answer
    x = 954,531.85

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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.