Home / 1,106,578.80-1,661,423.40-870,188.40

Finding the Fourth Proportional to 1,106,578.80, 1,661,423.40 and 870,188.40

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Solution

The fourth proportional to 1,106,578.80, 1,661,423.40 and 870,188.40 is: 1,306,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,578.80 : 1,661,423.40 = 870,188.40 : x
  2. Step 2: Convert to fraction form
    1,106,578.80/1,661,423.40 = 870,188.40/x
  3. Step 3: Cross multiply
    1,106,578.80x = 1,661,423.40 × 870,188.40
  4. Step 4: Simplify right side
    1,106,578.80x = 1,445,751,370,168.56
  5. Step 5: Solve for x
    x = 1,445,751,370,168.56/1,106,578.80
  6. Step 6: Final answer
    x = 1,306,505.57

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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.