Home / 1,307,205.18-1,803,986.90-726,452.78

Finding the Fourth Proportional to 1,307,205.18, 1,803,986.90 and 726,452.78

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Solution

The fourth proportional to 1,307,205.18, 1,803,986.90 and 726,452.78 is: 1,002,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,205.18 : 1,803,986.90 = 726,452.78 : x
  2. Step 2: Convert to fraction form
    1,307,205.18/1,803,986.90 = 726,452.78/x
  3. Step 3: Cross multiply
    1,307,205.18x = 1,803,986.90 × 726,452.78
  4. Step 4: Simplify right side
    1,307,205.18x = 1,310,511,294,956.32
  5. Step 5: Solve for x
    x = 1,310,511,294,956.32/1,307,205.18
  6. Step 6: Final answer
    x = 1,002,529.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.