Home / 763,911.86-1,053,829.78-508,936.82

Finding the Fourth Proportional to 763,911.86, 1,053,829.78 and 508,936.82

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Solution

The fourth proportional to 763,911.86, 1,053,829.78 and 508,936.82 is: 702,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,911.86 : 1,053,829.78 = 508,936.82 : x
  2. Step 2: Convert to fraction form
    763,911.86/1,053,829.78 = 508,936.82/x
  3. Step 3: Cross multiply
    763,911.86x = 1,053,829.78 × 508,936.82
  4. Step 4: Simplify right side
    763,911.86x = 536,332,770,513.01
  5. Step 5: Solve for x
    x = 536,332,770,513.01/763,911.86
  6. Step 6: Final answer
    x = 702,087.25

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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.