Home / 1,755,128.26-2,632,692.40-425,432.26

Finding the Fourth Proportional to 1,755,128.26, 2,632,692.40 and 425,432.26

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Solution

The fourth proportional to 1,755,128.26, 2,632,692.40 and 425,432.26 is: 638,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,128.26 : 2,632,692.40 = 425,432.26 : x
  2. Step 2: Convert to fraction form
    1,755,128.26/2,632,692.40 = 425,432.26/x
  3. Step 3: Cross multiply
    1,755,128.26x = 2,632,692.40 × 425,432.26
  4. Step 4: Simplify right side
    1,755,128.26x = 1,120,032,277,616.82
  5. Step 5: Solve for x
    x = 1,120,032,277,616.82/1,755,128.26
  6. Step 6: Final answer
    x = 638,148.39

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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.