Home / 1,330,502.60-1,995,753.90-1,318,692.80

Finding the Fourth Proportional to 1,330,502.60, 1,995,753.90 and 1,318,692.80

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Solution

The fourth proportional to 1,330,502.60, 1,995,753.90 and 1,318,692.80 is: 1,978,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,502.60 : 1,995,753.90 = 1,318,692.80 : x
  2. Step 2: Convert to fraction form
    1,330,502.60/1,995,753.90 = 1,318,692.80/x
  3. Step 3: Cross multiply
    1,330,502.60x = 1,995,753.90 × 1,318,692.80
  4. Step 4: Simplify right side
    1,330,502.60x = 2,631,786,298,501.92
  5. Step 5: Solve for x
    x = 2,631,786,298,501.92/1,330,502.60
  6. Step 6: Final answer
    x = 1,978,039.20

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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.