Home / 1,279,692.96-1,920,720.24-649,049.64

Finding the Fourth Proportional to 1,279,692.96, 1,920,720.24 and 649,049.64

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Solution

The fourth proportional to 1,279,692.96, 1,920,720.24 and 649,049.64 is: 974,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,692.96 : 1,920,720.24 = 649,049.64 : x
  2. Step 2: Convert to fraction form
    1,279,692.96/1,920,720.24 = 649,049.64/x
  3. Step 3: Cross multiply
    1,279,692.96x = 1,920,720.24 × 649,049.64
  4. Step 4: Simplify right side
    1,279,692.96x = 1,246,642,780,312.71
  5. Step 5: Solve for x
    x = 1,246,642,780,312.71/1,279,692.96
  6. Step 6: Final answer
    x = 974,173.35

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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.