Home / 1,210,537.20-1,815,805.80-738,145.20

Finding the Fourth Proportional to 1,210,537.20, 1,815,805.80 and 738,145.20

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Solution

The fourth proportional to 1,210,537.20, 1,815,805.80 and 738,145.20 is: 1,107,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,537.20 : 1,815,805.80 = 738,145.20 : x
  2. Step 2: Convert to fraction form
    1,210,537.20/1,815,805.80 = 738,145.20/x
  3. Step 3: Cross multiply
    1,210,537.20x = 1,815,805.80 × 738,145.20
  4. Step 4: Simplify right side
    1,210,537.20x = 1,340,328,335,402.16
  5. Step 5: Solve for x
    x = 1,340,328,335,402.16/1,210,537.20
  6. Step 6: Final answer
    x = 1,107,217.80

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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.