Home / 1,210,518.20-1,815,777.30-738,126.20

Finding the Fourth Proportional to 1,210,518.20, 1,815,777.30 and 738,126.20

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Solution

The fourth proportional to 1,210,518.20, 1,815,777.30 and 738,126.20 is: 1,107,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,518.20 : 1,815,777.30 = 738,126.20 : x
  2. Step 2: Convert to fraction form
    1,210,518.20/1,815,777.30 = 738,126.20/x
  3. Step 3: Cross multiply
    1,210,518.20x = 1,815,777.30 × 738,126.20
  4. Step 4: Simplify right side
    1,210,518.20x = 1,340,272,798,495.26
  5. Step 5: Solve for x
    x = 1,340,272,798,495.26/1,210,518.20
  6. Step 6: Final answer
    x = 1,107,189.30

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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.