Home / 791,054.21-1,091,654.85-428,478.20

Finding the Fourth Proportional to 791,054.21, 1,091,654.85 and 428,478.20

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Solution

The fourth proportional to 791,054.21, 1,091,654.85 and 428,478.20 is: 591,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,054.21 : 1,091,654.85 = 428,478.20 : x
  2. Step 2: Convert to fraction form
    791,054.21/1,091,654.85 = 428,478.20/x
  3. Step 3: Cross multiply
    791,054.21x = 1,091,654.85 × 428,478.20
  4. Step 4: Simplify right side
    791,054.21x = 467,750,305,391.50
  5. Step 5: Solve for x
    x = 467,750,305,391.50/791,054.21
  6. Step 6: Final answer
    x = 591,299.94

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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.