Home / 1,557,452.76-2,149,280.77-869,117.39

Finding the Fourth Proportional to 1,557,452.76, 2,149,280.77 and 869,117.39

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Solution

The fourth proportional to 1,557,452.76, 2,149,280.77 and 869,117.39 is: 1,199,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,452.76 : 2,149,280.77 = 869,117.39 : x
  2. Step 2: Convert to fraction form
    1,557,452.76/2,149,280.77 = 869,117.39/x
  3. Step 3: Cross multiply
    1,557,452.76x = 2,149,280.77 × 869,117.39
  4. Step 4: Simplify right side
    1,557,452.76x = 1,867,977,293,199.59
  5. Step 5: Solve for x
    x = 1,867,977,293,199.59/1,557,452.76
  6. Step 6: Final answer
    x = 1,199,379.74

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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.