Home / 1,016,135.19-1,402,137.69-557,128.98

Finding the Fourth Proportional to 1,016,135.19, 1,402,137.69 and 557,128.98

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Solution

The fourth proportional to 1,016,135.19, 1,402,137.69 and 557,128.98 is: 768,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,135.19 : 1,402,137.69 = 557,128.98 : x
  2. Step 2: Convert to fraction form
    1,016,135.19/1,402,137.69 = 557,128.98/x
  3. Step 3: Cross multiply
    1,016,135.19x = 1,402,137.69 × 557,128.98
  4. Step 4: Simplify right side
    1,016,135.19x = 781,171,541,049.26
  5. Step 5: Solve for x
    x = 781,171,541,049.26/1,016,135.19
  6. Step 6: Final answer
    x = 768,767.33

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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.