Home / 1,187,795.10-1,781,692.65-1,119,366.30

Finding the Fourth Proportional to 1,187,795.10, 1,781,692.65 and 1,119,366.30

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Solution

The fourth proportional to 1,187,795.10, 1,781,692.65 and 1,119,366.30 is: 1,679,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,795.10 : 1,781,692.65 = 1,119,366.30 : x
  2. Step 2: Convert to fraction form
    1,187,795.10/1,781,692.65 = 1,119,366.30/x
  3. Step 3: Cross multiply
    1,187,795.10x = 1,781,692.65 × 1,119,366.30
  4. Step 4: Simplify right side
    1,187,795.10x = 1,994,366,709,367.70
  5. Step 5: Solve for x
    x = 1,994,366,709,367.70/1,187,795.10
  6. Step 6: Final answer
    x = 1,679,049.45

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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.