Home / 3,638,795.40-5,458,193.10-1,242,280.80

Finding the Fourth Proportional to 3,638,795.40, 5,458,193.10 and 1,242,280.80

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Solution

The fourth proportional to 3,638,795.40, 5,458,193.10 and 1,242,280.80 is: 1,863,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638,795.40 : 5,458,193.10 = 1,242,280.80 : x
  2. Step 2: Convert to fraction form
    3,638,795.40/5,458,193.10 = 1,242,280.80/x
  3. Step 3: Cross multiply
    3,638,795.40x = 5,458,193.10 × 1,242,280.80
  4. Step 4: Simplify right side
    3,638,795.40x = 6,780,608,490,822.48
  5. Step 5: Solve for x
    x = 6,780,608,490,822.48/3,638,795.40
  6. Step 6: Final answer
    x = 1,863,421.20

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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.