Home / 805,393.92-1,111,457.28-442,832.64

Finding the Fourth Proportional to 805,393.92, 1,111,457.28 and 442,832.64

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Solution

The fourth proportional to 805,393.92, 1,111,457.28 and 442,832.64 is: 611,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,393.92 : 1,111,457.28 = 442,832.64 : x
  2. Step 2: Convert to fraction form
    805,393.92/1,111,457.28 = 442,832.64/x
  3. Step 3: Cross multiply
    805,393.92x = 1,111,457.28 × 442,832.64
  4. Step 4: Simplify right side
    805,393.92x = 492,189,561,549.62
  5. Step 5: Solve for x
    x = 492,189,561,549.62/805,393.92
  6. Step 6: Final answer
    x = 611,116.56

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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.