Home / 1,103,965.45-1,523,248.77-644,991.30

Finding the Fourth Proportional to 1,103,965.45, 1,523,248.77 and 644,991.30

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Solution

The fourth proportional to 1,103,965.45, 1,523,248.77 and 644,991.30 is: 889,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,965.45 : 1,523,248.77 = 644,991.30 : x
  2. Step 2: Convert to fraction form
    1,103,965.45/1,523,248.77 = 644,991.30/x
  3. Step 3: Cross multiply
    1,103,965.45x = 1,523,248.77 × 644,991.30
  4. Step 4: Simplify right side
    1,103,965.45x = 982,482,204,385.70
  5. Step 5: Solve for x
    x = 982,482,204,385.70/1,103,965.45
  6. Step 6: Final answer
    x = 889,957.39

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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.