Home / 873,111.58-1,309,667.73-392,778.33

Finding the Fourth Proportional to 873,111.58, 1,309,667.73 and 392,778.33

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Solution

The fourth proportional to 873,111.58, 1,309,667.73 and 392,778.33 is: 589,167.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,111.58 : 1,309,667.73 = 392,778.33 : x
  2. Step 2: Convert to fraction form
    873,111.58/1,309,667.73 = 392,778.33/x
  3. Step 3: Cross multiply
    873,111.58x = 1,309,667.73 × 392,778.33
  4. Step 4: Simplify right side
    873,111.58x = 514,409,101,880.40
  5. Step 5: Solve for x
    x = 514,409,101,880.40/873,111.58
  6. Step 6: Final answer
    x = 589,167.66

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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.