Home / 1,280,615.30-1,767,249.74-707,655.47

Finding the Fourth Proportional to 1,280,615.30, 1,767,249.74 and 707,655.47

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Solution

The fourth proportional to 1,280,615.30, 1,767,249.74 and 707,655.47 is: 976,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,615.30 : 1,767,249.74 = 707,655.47 : x
  2. Step 2: Convert to fraction form
    1,280,615.30/1,767,249.74 = 707,655.47/x
  3. Step 3: Cross multiply
    1,280,615.30x = 1,767,249.74 × 707,655.47
  4. Step 4: Simplify right side
    1,280,615.30x = 1,250,603,948,240.75
  5. Step 5: Solve for x
    x = 1,250,603,948,240.75/1,280,615.30
  6. Step 6: Final answer
    x = 976,564.90

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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.