Home / 1,119,942.40-1,679,913.60-699,455.20

Finding the Fourth Proportional to 1,119,942.40, 1,679,913.60 and 699,455.20

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Solution

The fourth proportional to 1,119,942.40, 1,679,913.60 and 699,455.20 is: 1,049,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,942.40 : 1,679,913.60 = 699,455.20 : x
  2. Step 2: Convert to fraction form
    1,119,942.40/1,679,913.60 = 699,455.20/x
  3. Step 3: Cross multiply
    1,119,942.40x = 1,679,913.60 × 699,455.20
  4. Step 4: Simplify right side
    1,119,942.40x = 1,175,024,303,070.72
  5. Step 5: Solve for x
    x = 1,175,024,303,070.72/1,119,942.40
  6. Step 6: Final answer
    x = 1,049,182.80

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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.