Home / 1,405,679.12-1,939,828.34-761,097.32

Finding the Fourth Proportional to 1,405,679.12, 1,939,828.34 and 761,097.32

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Solution

The fourth proportional to 1,405,679.12, 1,939,828.34 and 761,097.32 is: 1,050,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,679.12 : 1,939,828.34 = 761,097.32 : x
  2. Step 2: Convert to fraction form
    1,405,679.12/1,939,828.34 = 761,097.32/x
  3. Step 3: Cross multiply
    1,405,679.12x = 1,939,828.34 × 761,097.32
  4. Step 4: Simplify right side
    1,405,679.12x = 1,476,398,150,834.05
  5. Step 5: Solve for x
    x = 1,476,398,150,834.05/1,405,679.12
  6. Step 6: Final answer
    x = 1,050,309.51

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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.