Home / 1,422,719.96-1,963,234.31-802,490.86

Finding the Fourth Proportional to 1,422,719.96, 1,963,234.31 and 802,490.86

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Solution

The fourth proportional to 1,422,719.96, 1,963,234.31 and 802,490.86 is: 1,107,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,719.96 : 1,963,234.31 = 802,490.86 : x
  2. Step 2: Convert to fraction form
    1,422,719.96/1,963,234.31 = 802,490.86/x
  3. Step 3: Cross multiply
    1,422,719.96x = 1,963,234.31 × 802,490.86
  4. Step 4: Simplify right side
    1,422,719.96x = 1,575,477,589,813.41
  5. Step 5: Solve for x
    x = 1,575,477,589,813.41/1,422,719.96
  6. Step 6: Final answer
    x = 1,107,370.13

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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.