Home / 1,187,780.85-1,781,671.28-1,119,352.05

Finding the Fourth Proportional to 1,187,780.85, 1,781,671.28 and 1,119,352.05

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Solution

The fourth proportional to 1,187,780.85, 1,781,671.28 and 1,119,352.05 is: 1,679,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,780.85 : 1,781,671.28 = 1,119,352.05 : x
  2. Step 2: Convert to fraction form
    1,187,780.85/1,781,671.28 = 1,119,352.05/x
  3. Step 3: Cross multiply
    1,187,780.85x = 1,781,671.28 × 1,119,352.05
  4. Step 4: Simplify right side
    1,187,780.85x = 1,994,317,394,097.36
  5. Step 5: Solve for x
    x = 1,994,317,394,097.36/1,187,780.85
  6. Step 6: Final answer
    x = 1,679,028.08

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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.