Home / 1,555,109.16-2,145,790.65-866,630.16

Finding the Fourth Proportional to 1,555,109.16, 2,145,790.65 and 866,630.16

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Solution

The fourth proportional to 1,555,109.16, 2,145,790.65 and 866,630.16 is: 1,195,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,109.16 : 2,145,790.65 = 866,630.16 : x
  2. Step 2: Convert to fraction form
    1,555,109.16/2,145,790.65 = 866,630.16/x
  3. Step 3: Cross multiply
    1,555,109.16x = 2,145,790.65 × 866,630.16
  4. Step 4: Simplify right side
    1,555,109.16x = 1,859,606,894,336.00
  5. Step 5: Solve for x
    x = 1,859,606,894,336.00/1,555,109.16
  6. Step 6: Final answer
    x = 1,195,804.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.