Home / 1,159,127.80-1,736,358.90-781,214.20

Finding the Fourth Proportional to 1,159,127.80, 1,736,358.90 and 781,214.20

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Solution

The fourth proportional to 1,159,127.80, 1,736,358.90 and 781,214.20 is: 1,170,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,127.80 : 1,736,358.90 = 781,214.20 : x
  2. Step 2: Convert to fraction form
    1,159,127.80/1,736,358.90 = 781,214.20/x
  3. Step 3: Cross multiply
    1,159,127.80x = 1,736,358.90 × 781,214.20
  4. Step 4: Simplify right side
    1,159,127.80x = 1,356,468,228,976.38
  5. Step 5: Solve for x
    x = 1,356,468,228,976.38/1,159,127.80
  6. Step 6: Final answer
    x = 1,170,249.07

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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.