Home / 2,945,129.26-4,417,700.13-815,219.50

Finding the Fourth Proportional to 2,945,129.26, 4,417,700.13 and 815,219.50

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Solution

The fourth proportional to 2,945,129.26, 4,417,700.13 and 815,219.50 is: 1,222,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,129.26 : 4,417,700.13 = 815,219.50 : x
  2. Step 2: Convert to fraction form
    2,945,129.26/4,417,700.13 = 815,219.50/x
  3. Step 3: Cross multiply
    2,945,129.26x = 4,417,700.13 × 815,219.50
  4. Step 4: Simplify right side
    2,945,129.26x = 3,601,395,291,128.53
  5. Step 5: Solve for x
    x = 3,601,395,291,128.53/2,945,129.26
  6. Step 6: Final answer
    x = 1,222,830.98

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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.