Home / 1,245,110.64-1,718,374.91-728,833.45

Finding the Fourth Proportional to 1,245,110.64, 1,718,374.91 and 728,833.45

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Solution

The fourth proportional to 1,245,110.64, 1,718,374.91 and 728,833.45 is: 1,005,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,110.64 : 1,718,374.91 = 728,833.45 : x
  2. Step 2: Convert to fraction form
    1,245,110.64/1,718,374.91 = 728,833.45/x
  3. Step 3: Cross multiply
    1,245,110.64x = 1,718,374.91 × 728,833.45
  4. Step 4: Simplify right side
    1,245,110.64x = 1,252,409,114,048.74
  5. Step 5: Solve for x
    x = 1,252,409,114,048.74/1,245,110.64
  6. Step 6: Final answer
    x = 1,005,861.71

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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.