Home / 805,427.25-1,111,459.70-442,829.54

Finding the Fourth Proportional to 805,427.25, 1,111,459.70 and 442,829.54

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Solution

The fourth proportional to 805,427.25, 1,111,459.70 and 442,829.54 is: 611,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,427.25 : 1,111,459.70 = 442,829.54 : x
  2. Step 2: Convert to fraction form
    805,427.25/1,111,459.70 = 442,829.54/x
  3. Step 3: Cross multiply
    805,427.25x = 1,111,459.70 × 442,829.54
  4. Step 4: Simplify right side
    805,427.25x = 492,187,179,908.09
  5. Step 5: Solve for x
    x = 492,187,179,908.09/805,427.25
  6. Step 6: Final answer
    x = 611,088.31

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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.