Home / 1,289,107.20-1,779,252.48-716,344.32

Finding the Fourth Proportional to 1,289,107.20, 1,779,252.48 and 716,344.32

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Solution

The fourth proportional to 1,289,107.20, 1,779,252.48 and 716,344.32 is: 988,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,107.20 : 1,779,252.48 = 716,344.32 : x
  2. Step 2: Convert to fraction form
    1,289,107.20/1,779,252.48 = 716,344.32/x
  3. Step 3: Cross multiply
    1,289,107.20x = 1,779,252.48 × 716,344.32
  4. Step 4: Simplify right side
    1,289,107.20x = 1,274,557,407,893.91
  5. Step 5: Solve for x
    x = 1,274,557,407,893.91/1,289,107.20
  6. Step 6: Final answer
    x = 988,713.28

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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.