Home / 1,131,508.40-1,697,262.60-1,087,962.80

Finding the Fourth Proportional to 1,131,508.40, 1,697,262.60 and 1,087,962.80

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Solution

The fourth proportional to 1,131,508.40, 1,697,262.60 and 1,087,962.80 is: 1,631,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,508.40 : 1,697,262.60 = 1,087,962.80 : x
  2. Step 2: Convert to fraction form
    1,131,508.40/1,697,262.60 = 1,087,962.80/x
  3. Step 3: Cross multiply
    1,131,508.40x = 1,697,262.60 × 1,087,962.80
  4. Step 4: Simplify right side
    1,131,508.40x = 1,846,558,570,631.28
  5. Step 5: Solve for x
    x = 1,846,558,570,631.28/1,131,508.40
  6. Step 6: Final answer
    x = 1,631,944.20

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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.