Home / 805,420.56-1,111,493.16-442,860.24

Finding the Fourth Proportional to 805,420.56, 1,111,493.16 and 442,860.24

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Solution

The fourth proportional to 805,420.56, 1,111,493.16 and 442,860.24 is: 611,154.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,420.56 : 1,111,493.16 = 442,860.24 : x
  2. Step 2: Convert to fraction form
    805,420.56/1,111,493.16 = 442,860.24/x
  3. Step 3: Cross multiply
    805,420.56x = 1,111,493.16 × 442,860.24
  4. Step 4: Simplify right side
    805,420.56x = 492,236,127,595.96
  5. Step 5: Solve for x
    x = 492,236,127,595.96/805,420.56
  6. Step 6: Final answer
    x = 611,154.16

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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.