Home / 869,878.26-1,200,438.42-482,695.20

Finding the Fourth Proportional to 869,878.26, 1,200,438.42 and 482,695.20

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Solution

The fourth proportional to 869,878.26, 1,200,438.42 and 482,695.20 is: 666,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,878.26 : 1,200,438.42 = 482,695.20 : x
  2. Step 2: Convert to fraction form
    869,878.26/1,200,438.42 = 482,695.20/x
  3. Step 3: Cross multiply
    869,878.26x = 1,200,438.42 × 482,695.20
  4. Step 4: Simplify right side
    869,878.26x = 579,445,863,229.58
  5. Step 5: Solve for x
    x = 579,445,863,229.58/869,878.26
  6. Step 6: Final answer
    x = 666,122.94

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Double scale
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1.5x scale

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.