Home / 855,650.45-1,180,426.97-515,929.97

Finding the Fourth Proportional to 855,650.45, 1,180,426.97 and 515,929.97

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Solution

The fourth proportional to 855,650.45, 1,180,426.97 and 515,929.97 is: 711,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,650.45 : 1,180,426.97 = 515,929.97 : x
  2. Step 2: Convert to fraction form
    855,650.45/1,180,426.97 = 515,929.97/x
  3. Step 3: Cross multiply
    855,650.45x = 1,180,426.97 × 515,929.97
  4. Step 4: Simplify right side
    855,650.45x = 609,017,648,639.64
  5. Step 5: Solve for x
    x = 609,017,648,639.64/855,650.45
  6. Step 6: Final answer
    x = 711,759.86

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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.