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Finding the Fourth Proportional to 580,926.80, 871,390.20 and 538,936.40

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Solution

The fourth proportional to 580,926.80, 871,390.20 and 538,936.40 is: 808,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,926.80 : 871,390.20 = 538,936.40 : x
  2. Step 2: Convert to fraction form
    580,926.80/871,390.20 = 538,936.40/x
  3. Step 3: Cross multiply
    580,926.80x = 871,390.20 × 538,936.40
  4. Step 4: Simplify right side
    580,926.80x = 469,623,897,383.28
  5. Step 5: Solve for x
    x = 469,623,897,383.28/580,926.80
  6. Step 6: Final answer
    x = 808,404.60

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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.