Home / 894,540-1,234,465.20-492,123.36

Finding the Fourth Proportional to 894,540, 1,234,465.20 and 492,123.36

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Solution

The fourth proportional to 894,540, 1,234,465.20 and 492,123.36 is: 679,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,540 : 1,234,465.20 = 492,123.36 : x
  2. Step 2: Convert to fraction form
    894,540/1,234,465.20 = 492,123.36/x
  3. Step 3: Cross multiply
    894,540x = 1,234,465.20 × 492,123.36
  4. Step 4: Simplify right side
    894,540x = 607,509,162,027.07
  5. Step 5: Solve for x
    x = 607,509,162,027.07/894,540
  6. Step 6: Final answer
    x = 679,130.24

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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.