Home / 1,293,175-1,784,453.70-720,268.48

Finding the Fourth Proportional to 1,293,175, 1,784,453.70 and 720,268.48

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Solution

The fourth proportional to 1,293,175, 1,784,453.70 and 720,268.48 is: 993,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,175 : 1,784,453.70 = 720,268.48 : x
  2. Step 2: Convert to fraction form
    1,293,175/1,784,453.70 = 720,268.48/x
  3. Step 3: Cross multiply
    1,293,175x = 1,784,453.70 × 720,268.48
  4. Step 4: Simplify right side
    1,293,175x = 1,285,285,754,129.38
  5. Step 5: Solve for x
    x = 1,285,285,754,129.38/1,293,175
  6. Step 6: Final answer
    x = 993,899.32

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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.