Home / 761,823-1,051,316.70-422,342.04

Finding the Fourth Proportional to 761,823, 1,051,316.70 and 422,342.04

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Solution

The fourth proportional to 761,823, 1,051,316.70 and 422,342.04 is: 582,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,823 : 1,051,316.70 = 422,342.04 : x
  2. Step 2: Convert to fraction form
    761,823/1,051,316.70 = 422,342.04/x
  3. Step 3: Cross multiply
    761,823x = 1,051,316.70 × 422,342.04
  4. Step 4: Simplify right side
    761,823x = 444,015,239,764.07
  5. Step 5: Solve for x
    x = 444,015,239,764.07/761,823
  6. Step 6: Final answer
    x = 582,832.55

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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.