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Finding the Fourth Proportional to 868,860.53, 1,199,010.57 and 476,388.80

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Solution

The fourth proportional to 868,860.53, 1,199,010.57 and 476,388.80 is: 657,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,860.53 : 1,199,010.57 = 476,388.80 : x
  2. Step 2: Convert to fraction form
    868,860.53/1,199,010.57 = 476,388.80/x
  3. Step 3: Cross multiply
    868,860.53x = 1,199,010.57 × 476,388.80
  4. Step 4: Simplify right side
    868,860.53x = 571,195,206,629.62
  5. Step 5: Solve for x
    x = 571,195,206,629.62/868,860.53
  6. Step 6: Final answer
    x = 657,407.24

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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.