Home / 805,460.88-1,111,564.56-442,912.32

Finding the Fourth Proportional to 805,460.88, 1,111,564.56 and 442,912.32

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Solution

The fourth proportional to 805,460.88, 1,111,564.56 and 442,912.32 is: 611,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,460.88 : 1,111,564.56 = 442,912.32 : x
  2. Step 2: Convert to fraction form
    805,460.88/1,111,564.56 = 442,912.32/x
  3. Step 3: Cross multiply
    805,460.88x = 1,111,564.56 × 442,912.32
  4. Step 4: Simplify right side
    805,460.88x = 492,325,638,099.38
  5. Step 5: Solve for x
    x = 492,325,638,099.38/805,460.88
  6. Step 6: Final answer
    x = 611,234.70

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1.5x scale

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.