Home / 791,378.19-1,092,102.88-428,801.77

Finding the Fourth Proportional to 791,378.19, 1,092,102.88 and 428,801.77

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Solution

The fourth proportional to 791,378.19, 1,092,102.88 and 428,801.77 is: 591,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,378.19 : 1,092,102.88 = 428,801.77 : x
  2. Step 2: Convert to fraction form
    791,378.19/1,092,102.88 = 428,801.77/x
  3. Step 3: Cross multiply
    791,378.19x = 1,092,102.88 × 428,801.77
  4. Step 4: Simplify right side
    791,378.19x = 468,295,644,163.84
  5. Step 5: Solve for x
    x = 468,295,644,163.84/791,378.19
  6. Step 6: Final answer
    x = 591,746.97

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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.