Home / 1,369,965.19-1,890,505.50-758,143.78

Finding the Fourth Proportional to 1,369,965.19, 1,890,505.50 and 758,143.78

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Solution

The fourth proportional to 1,369,965.19, 1,890,505.50 and 758,143.78 is: 1,046,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,965.19 : 1,890,505.50 = 758,143.78 : x
  2. Step 2: Convert to fraction form
    1,369,965.19/1,890,505.50 = 758,143.78/x
  3. Step 3: Cross multiply
    1,369,965.19x = 1,890,505.50 × 758,143.78
  4. Step 4: Simplify right side
    1,369,965.19x = 1,433,274,985,880.79
  5. Step 5: Solve for x
    x = 1,433,274,985,880.79/1,369,965.19
  6. Step 6: Final answer
    x = 1,046,212.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.