Home / 776,072.36-1,070,965.48-431,905.25

Finding the Fourth Proportional to 776,072.36, 1,070,965.48 and 431,905.25

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Solution

The fourth proportional to 776,072.36, 1,070,965.48 and 431,905.25 is: 596,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,072.36 : 1,070,965.48 = 431,905.25 : x
  2. Step 2: Convert to fraction form
    776,072.36/1,070,965.48 = 431,905.25/x
  3. Step 3: Cross multiply
    776,072.36x = 1,070,965.48 × 431,905.25
  4. Step 4: Simplify right side
    776,072.36x = 462,555,613,380.77
  5. Step 5: Solve for x
    x = 462,555,613,380.77/776,072.36
  6. Step 6: Final answer
    x = 596,021.24

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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.