Home / 912,965.46-1,369,180.50-343,936

Finding the Fourth Proportional to 912,965.46, 1,369,180.50 and 343,936

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Solution

The fourth proportional to 912,965.46, 1,369,180.50 and 343,936 is: 515,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,965.46 : 1,369,180.50 = 343,936 : x
  2. Step 2: Convert to fraction form
    912,965.46/1,369,180.50 = 343,936/x
  3. Step 3: Cross multiply
    912,965.46x = 1,369,180.50 × 343,936
  4. Step 4: Simplify right side
    912,965.46x = 470,910,464,448
  5. Step 5: Solve for x
    x = 470,910,464,448/912,965.46
  6. Step 6: Final answer
    x = 515,803.15

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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.