Home / 873,116.92-1,309,675.72-392,783.66

Finding the Fourth Proportional to 873,116.92, 1,309,675.72 and 392,783.66

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Solution

The fourth proportional to 873,116.92, 1,309,675.72 and 392,783.66 is: 589,175.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,116.92 : 1,309,675.72 = 392,783.66 : x
  2. Step 2: Convert to fraction form
    873,116.92/1,309,675.72 = 392,783.66/x
  3. Step 3: Cross multiply
    873,116.92x = 1,309,675.72 × 392,783.66
  4. Step 4: Simplify right side
    873,116.92x = 514,419,222,714.74
  5. Step 5: Solve for x
    x = 514,419,222,714.74/873,116.92
  6. Step 6: Final answer
    x = 589,175.64

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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.