Home / 1,354,390.42-1,869,249.19-838,309.85

Finding the Fourth Proportional to 1,354,390.42, 1,869,249.19 and 838,309.85

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Solution

The fourth proportional to 1,354,390.42, 1,869,249.19 and 838,309.85 is: 1,156,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,390.42 : 1,869,249.19 = 838,309.85 : x
  2. Step 2: Convert to fraction form
    1,354,390.42/1,869,249.19 = 838,309.85/x
  3. Step 3: Cross multiply
    1,354,390.42x = 1,869,249.19 × 838,309.85
  4. Step 4: Simplify right side
    1,354,390.42x = 1,567,010,008,081.52
  5. Step 5: Solve for x
    x = 1,567,010,008,081.52/1,354,390.42
  6. Step 6: Final answer
    x = 1,156,985.45

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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.