Home / 1,272,469.34-1,908,687.18-312,933.22

Finding the Fourth Proportional to 1,272,469.34, 1,908,687.18 and 312,933.22

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Solution

The fourth proportional to 1,272,469.34, 1,908,687.18 and 312,933.22 is: 469,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,469.34 : 1,908,687.18 = 312,933.22 : x
  2. Step 2: Convert to fraction form
    1,272,469.34/1,908,687.18 = 312,933.22/x
  3. Step 3: Cross multiply
    1,272,469.34x = 1,908,687.18 × 312,933.22
  4. Step 4: Simplify right side
    1,272,469.34x = 597,291,625,210.12
  5. Step 5: Solve for x
    x = 597,291,625,210.12/1,272,469.34
  6. Step 6: Final answer
    x = 469,395.69

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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.