Home / 1,187,736.40-1,778,494.20-870,475.60

Finding the Fourth Proportional to 1,187,736.40, 1,778,494.20 and 870,475.60

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Solution

The fourth proportional to 1,187,736.40, 1,778,494.20 and 870,475.60 is: 1,303,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,736.40 : 1,778,494.20 = 870,475.60 : x
  2. Step 2: Convert to fraction form
    1,187,736.40/1,778,494.20 = 870,475.60/x
  3. Step 3: Cross multiply
    1,187,736.40x = 1,778,494.20 × 870,475.60
  4. Step 4: Simplify right side
    1,187,736.40x = 1,548,135,805,841.52
  5. Step 5: Solve for x
    x = 1,548,135,805,841.52/1,187,736.40
  6. Step 6: Final answer
    x = 1,303,433.83

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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.