Home / 1,318,122.42-1,975,826.07-519,080.10

Finding the Fourth Proportional to 1,318,122.42, 1,975,826.07 and 519,080.10

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Solution

The fourth proportional to 1,318,122.42, 1,975,826.07 and 519,080.10 is: 778,085.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,122.42 : 1,975,826.07 = 519,080.10 : x
  2. Step 2: Convert to fraction form
    1,318,122.42/1,975,826.07 = 519,080.10/x
  3. Step 3: Cross multiply
    1,318,122.42x = 1,975,826.07 × 519,080.10
  4. Step 4: Simplify right side
    1,318,122.42x = 1,025,611,993,998.21
  5. Step 5: Solve for x
    x = 1,025,611,993,998.21/1,318,122.42
  6. Step 6: Final answer
    x = 778,085.54

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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.