Home / 1,285,377.96-1,928,336.68-386,885.46

Finding the Fourth Proportional to 1,285,377.96, 1,928,336.68 and 386,885.46

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Solution

The fourth proportional to 1,285,377.96, 1,928,336.68 and 386,885.46 is: 580,409.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,377.96 : 1,928,336.68 = 386,885.46 : x
  2. Step 2: Convert to fraction form
    1,285,377.96/1,928,336.68 = 386,885.46/x
  3. Step 3: Cross multiply
    1,285,377.96x = 1,928,336.68 × 386,885.46
  4. Step 4: Simplify right side
    1,285,377.96x = 746,045,423,476.67
  5. Step 5: Solve for x
    x = 746,045,423,476.67/1,285,377.96
  6. Step 6: Final answer
    x = 580,409.38

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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.