Home / 842,439.48-1,162,564.80-479,863.20

Finding the Fourth Proportional to 842,439.48, 1,162,564.80 and 479,863.20

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Solution

The fourth proportional to 842,439.48, 1,162,564.80 and 479,863.20 is: 662,210.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,439.48 : 1,162,564.80 = 479,863.20 : x
  2. Step 2: Convert to fraction form
    842,439.48/1,162,564.80 = 479,863.20/x
  3. Step 3: Cross multiply
    842,439.48x = 1,162,564.80 × 479,863.20
  4. Step 4: Simplify right side
    842,439.48x = 557,872,065,135.36
  5. Step 5: Solve for x
    x = 557,872,065,135.36/842,439.48
  6. Step 6: Final answer
    x = 662,210.26

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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.