Home / 1,280,135.16-1,766,575.98-707,163.30

Finding the Fourth Proportional to 1,280,135.16, 1,766,575.98 and 707,163.30

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Solution

The fourth proportional to 1,280,135.16, 1,766,575.98 and 707,163.30 is: 975,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,135.16 : 1,766,575.98 = 707,163.30 : x
  2. Step 2: Convert to fraction form
    1,280,135.16/1,766,575.98 = 707,163.30/x
  3. Step 3: Cross multiply
    1,280,135.16x = 1,766,575.98 × 707,163.30
  4. Step 4: Simplify right side
    1,280,135.16x = 1,249,257,699,717.53
  5. Step 5: Solve for x
    x = 1,249,257,699,717.53/1,280,135.16
  6. Step 6: Final answer
    x = 975,879.53

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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.