Home / 1,289,244.26-1,779,212.42-716,284.43

Finding the Fourth Proportional to 1,289,244.26, 1,779,212.42 and 716,284.43

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Solution

The fourth proportional to 1,289,244.26, 1,779,212.42 and 716,284.43 is: 988,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,244.26 : 1,779,212.42 = 716,284.43 : x
  2. Step 2: Convert to fraction form
    1,289,244.26/1,779,212.42 = 716,284.43/x
  3. Step 3: Cross multiply
    1,289,244.26x = 1,779,212.42 × 716,284.43
  4. Step 4: Simplify right side
    1,289,244.26x = 1,274,422,141,631.14
  5. Step 5: Solve for x
    x = 1,274,422,141,631.14/1,289,244.26
  6. Step 6: Final answer
    x = 988,503.25

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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.