Home / 1,289,928.60-1,934,909.10-343,293.48

Finding the Fourth Proportional to 1,289,928.60, 1,934,909.10 and 343,293.48

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Solution

The fourth proportional to 1,289,928.60, 1,934,909.10 and 343,293.48 is: 514,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,928.60 : 1,934,909.10 = 343,293.48 : x
  2. Step 2: Convert to fraction form
    1,289,928.60/1,934,909.10 = 343,293.48/x
  3. Step 3: Cross multiply
    1,289,928.60x = 1,934,909.10 × 343,293.48
  4. Step 4: Simplify right side
    1,289,928.60x = 664,241,678,422.67
  5. Step 5: Solve for x
    x = 664,241,678,422.67/1,289,928.60
  6. Step 6: Final answer
    x = 514,944.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.