Home / 1,318,507.76-1,987,643.98-1,230,622.38

Finding the Fourth Proportional to 1,318,507.76, 1,987,643.98 and 1,230,622.38

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Solution

The fourth proportional to 1,318,507.76, 1,987,643.98 and 1,230,622.38 is: 1,855,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,507.76 : 1,987,643.98 = 1,230,622.38 : x
  2. Step 2: Convert to fraction form
    1,318,507.76/1,987,643.98 = 1,230,622.38/x
  3. Step 3: Cross multiply
    1,318,507.76x = 1,987,643.98 × 1,230,622.38
  4. Step 4: Simplify right side
    1,318,507.76x = 2,446,039,165,260.27
  5. Step 5: Solve for x
    x = 2,446,039,165,260.27/1,318,507.76
  6. Step 6: Final answer
    x = 1,855,157.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.