Home / 1,159,158.80-1,736,405.40-781,245.20

Finding the Fourth Proportional to 1,159,158.80, 1,736,405.40 and 781,245.20

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Solution

The fourth proportional to 1,159,158.80, 1,736,405.40 and 781,245.20 is: 1,170,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,158.80 : 1,736,405.40 = 781,245.20 : x
  2. Step 2: Convert to fraction form
    1,159,158.80/1,736,405.40 = 781,245.20/x
  3. Step 3: Cross multiply
    1,159,158.80x = 1,736,405.40 × 781,245.20
  4. Step 4: Simplify right side
    1,159,158.80x = 1,356,558,384,004.08
  5. Step 5: Solve for x
    x = 1,356,558,384,004.08/1,159,158.80
  6. Step 6: Final answer
    x = 1,170,295.55

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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.