Home / 1,011,692.24-1,396,132.44-558,980

Finding the Fourth Proportional to 1,011,692.24, 1,396,132.44 and 558,980

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Solution

The fourth proportional to 1,011,692.24, 1,396,132.44 and 558,980 is: 771,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,692.24 : 1,396,132.44 = 558,980 : x
  2. Step 2: Convert to fraction form
    1,011,692.24/1,396,132.44 = 558,980/x
  3. Step 3: Cross multiply
    1,011,692.24x = 1,396,132.44 × 558,980
  4. Step 4: Simplify right side
    1,011,692.24x = 780,410,111,311.20
  5. Step 5: Solve for x
    x = 780,410,111,311.20/1,011,692.24
  6. Step 6: Final answer
    x = 771,390.82

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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.