Home / 1,090,692.20-1,505,420.28-631,732.76

Finding the Fourth Proportional to 1,090,692.20, 1,505,420.28 and 631,732.76

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Solution

The fourth proportional to 1,090,692.20, 1,505,420.28 and 631,732.76 is: 871,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,692.20 : 1,505,420.28 = 631,732.76 : x
  2. Step 2: Convert to fraction form
    1,090,692.20/1,505,420.28 = 631,732.76/x
  3. Step 3: Cross multiply
    1,090,692.20x = 1,505,420.28 × 631,732.76
  4. Step 4: Simplify right side
    1,090,692.20x = 951,023,308,444.37
  5. Step 5: Solve for x
    x = 951,023,308,444.37/1,090,692.20
  6. Step 6: Final answer
    x = 871,944.72

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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.