Home / 856,528.80-1,283,458.80-323,759.20

Finding the Fourth Proportional to 856,528.80, 1,283,458.80 and 323,759.20

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Solution

The fourth proportional to 856,528.80, 1,283,458.80 and 323,759.20 is: 485,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,528.80 : 1,283,458.80 = 323,759.20 : x
  2. Step 2: Convert to fraction form
    856,528.80/1,283,458.80 = 323,759.20/x
  3. Step 3: Cross multiply
    856,528.80x = 1,283,458.80 × 323,759.20
  4. Step 4: Simplify right side
    856,528.80x = 415,531,594,320.96
  5. Step 5: Solve for x
    x = 415,531,594,320.96/856,528.80
  6. Step 6: Final answer
    x = 485,134.41

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1.5x scale

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.