Home / 872,116.80-1,308,175.20-374,452.80

Finding the Fourth Proportional to 872,116.80, 1,308,175.20 and 374,452.80

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Solution

The fourth proportional to 872,116.80, 1,308,175.20 and 374,452.80 is: 561,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,116.80 : 1,308,175.20 = 374,452.80 : x
  2. Step 2: Convert to fraction form
    872,116.80/1,308,175.20 = 374,452.80/x
  3. Step 3: Cross multiply
    872,116.80x = 1,308,175.20 × 374,452.80
  4. Step 4: Simplify right side
    872,116.80x = 489,849,866,530.56
  5. Step 5: Solve for x
    x = 489,849,866,530.56/872,116.80
  6. Step 6: Final answer
    x = 561,679.20

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Double scale
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Similar ratio
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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.