Home / 1,276,145.90-1,761,158.68-703,185.38

Finding the Fourth Proportional to 1,276,145.90, 1,761,158.68 and 703,185.38

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Solution

The fourth proportional to 1,276,145.90, 1,761,158.68 and 703,185.38 is: 970,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,145.90 : 1,761,158.68 = 703,185.38 : x
  2. Step 2: Convert to fraction form
    1,276,145.90/1,761,158.68 = 703,185.38/x
  3. Step 3: Cross multiply
    1,276,145.90x = 1,761,158.68 × 703,185.38
  4. Step 4: Simplify right side
    1,276,145.90x = 1,238,421,035,636.10
  5. Step 5: Solve for x
    x = 1,238,421,035,636.10/1,276,145.90
  6. Step 6: Final answer
    x = 970,438.44

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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.