Home / 1,285,881.76-1,928,902.73-339,253.39

Finding the Fourth Proportional to 1,285,881.76, 1,928,902.73 and 339,253.39

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Solution

The fourth proportional to 1,285,881.76, 1,928,902.73 and 339,253.39 is: 508,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,881.76 : 1,928,902.73 = 339,253.39 : x
  2. Step 2: Convert to fraction form
    1,285,881.76/1,928,902.73 = 339,253.39/x
  3. Step 3: Cross multiply
    1,285,881.76x = 1,928,902.73 × 339,253.39
  4. Step 4: Simplify right side
    1,285,881.76x = 654,386,783,614.23
  5. Step 5: Solve for x
    x = 654,386,783,614.23/1,285,881.76
  6. Step 6: Final answer
    x = 508,901.21

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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.