Home / 1,405,926.39-1,940,179.47-761,347.29

Finding the Fourth Proportional to 1,405,926.39, 1,940,179.47 and 761,347.29

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Solution

The fourth proportional to 1,405,926.39, 1,940,179.47 and 761,347.29 is: 1,050,659.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,926.39 : 1,940,179.47 = 761,347.29 : x
  2. Step 2: Convert to fraction form
    1,405,926.39/1,940,179.47 = 761,347.29/x
  3. Step 3: Cross multiply
    1,405,926.39x = 1,940,179.47 × 761,347.29
  4. Step 4: Simplify right side
    1,405,926.39x = 1,477,150,381,598.14
  5. Step 5: Solve for x
    x = 1,477,150,381,598.14/1,405,926.39
  6. Step 6: Final answer
    x = 1,050,659.83

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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.