Home / 785,157.77-1,083,490.38-479,745.34

Finding the Fourth Proportional to 785,157.77, 1,083,490.38 and 479,745.34

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Solution

The fourth proportional to 785,157.77, 1,083,490.38 and 479,745.34 is: 662,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,157.77 : 1,083,490.38 = 479,745.34 : x
  2. Step 2: Convert to fraction form
    785,157.77/1,083,490.38 = 479,745.34/x
  3. Step 3: Cross multiply
    785,157.77x = 1,083,490.38 × 479,745.34
  4. Step 4: Simplify right side
    785,157.77x = 519,799,458,031.10
  5. Step 5: Solve for x
    x = 519,799,458,031.10/785,157.77
  6. Step 6: Final answer
    x = 662,031.86

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.