Home / 1,119,994.40-1,679,991.60-699,507.20

Finding the Fourth Proportional to 1,119,994.40, 1,679,991.60 and 699,507.20

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Solution

The fourth proportional to 1,119,994.40, 1,679,991.60 and 699,507.20 is: 1,049,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,994.40 : 1,679,991.60 = 699,507.20 : x
  2. Step 2: Convert to fraction form
    1,119,994.40/1,679,991.60 = 699,507.20/x
  3. Step 3: Cross multiply
    1,119,994.40x = 1,679,991.60 × 699,507.20
  4. Step 4: Simplify right side
    1,119,994.40x = 1,175,166,220,139.52
  5. Step 5: Solve for x
    x = 1,175,166,220,139.52/1,119,994.40
  6. Step 6: Final answer
    x = 1,049,260.80

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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.