Home / 776,857.71-1,072,092.59-428,012.29

Finding the Fourth Proportional to 776,857.71, 1,072,092.59 and 428,012.29

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Solution

The fourth proportional to 776,857.71, 1,072,092.59 and 428,012.29 is: 590,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,857.71 : 1,072,092.59 = 428,012.29 : x
  2. Step 2: Convert to fraction form
    776,857.71/1,072,092.59 = 428,012.29/x
  3. Step 3: Cross multiply
    776,857.71x = 1,072,092.59 × 428,012.29
  4. Step 4: Simplify right side
    776,857.71x = 458,868,804,537.93
  5. Step 5: Solve for x
    x = 458,868,804,537.93/776,857.71
  6. Step 6: Final answer
    x = 590,672.91

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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.