Home / 1,330,502.10-1,995,753.15-1,318,692.30

Finding the Fourth Proportional to 1,330,502.10, 1,995,753.15 and 1,318,692.30

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Solution

The fourth proportional to 1,330,502.10, 1,995,753.15 and 1,318,692.30 is: 1,978,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,502.10 : 1,995,753.15 = 1,318,692.30 : x
  2. Step 2: Convert to fraction form
    1,330,502.10/1,995,753.15 = 1,318,692.30/x
  3. Step 3: Cross multiply
    1,330,502.10x = 1,995,753.15 × 1,318,692.30
  4. Step 4: Simplify right side
    1,330,502.10x = 2,631,784,311,605.75
  5. Step 5: Solve for x
    x = 2,631,784,311,605.75/1,330,502.10
  6. Step 6: Final answer
    x = 1,978,038.45

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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.