Home / 662,516.28-992,491.38-396,486.36

Finding the Fourth Proportional to 662,516.28, 992,491.38 and 396,486.36

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Solution

The fourth proportional to 662,516.28, 992,491.38 and 396,486.36 is: 593,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,516.28 : 992,491.38 = 396,486.36 : x
  2. Step 2: Convert to fraction form
    662,516.28/992,491.38 = 396,486.36/x
  3. Step 3: Cross multiply
    662,516.28x = 992,491.38 × 396,486.36
  4. Step 4: Simplify right side
    662,516.28x = 393,509,294,587.58
  5. Step 5: Solve for x
    x = 393,509,294,587.58/662,516.28
  6. Step 6: Final answer
    x = 593,961.70

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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.