Home / 1,025,779.80-1,538,669.70-267,619.80

Finding the Fourth Proportional to 1,025,779.80, 1,538,669.70 and 267,619.80

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Solution

The fourth proportional to 1,025,779.80, 1,538,669.70 and 267,619.80 is: 401,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,779.80 : 1,538,669.70 = 267,619.80 : x
  2. Step 2: Convert to fraction form
    1,025,779.80/1,538,669.70 = 267,619.80/x
  3. Step 3: Cross multiply
    1,025,779.80x = 1,538,669.70 × 267,619.80
  4. Step 4: Simplify right side
    1,025,779.80x = 411,778,477,380.06
  5. Step 5: Solve for x
    x = 411,778,477,380.06/1,025,779.80
  6. Step 6: Final answer
    x = 401,429.70

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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.