Home / 805,454.88-1,111,499.28-442,876.20

Finding the Fourth Proportional to 805,454.88, 1,111,499.28 and 442,876.20

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Solution

The fourth proportional to 805,454.88, 1,111,499.28 and 442,876.20 is: 611,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,454.88 : 1,111,499.28 = 442,876.20 : x
  2. Step 2: Convert to fraction form
    805,454.88/1,111,499.28 = 442,876.20/x
  3. Step 3: Cross multiply
    805,454.88x = 1,111,499.28 × 442,876.20
  4. Step 4: Simplify right side
    805,454.88x = 492,256,577,429.14
  5. Step 5: Solve for x
    x = 492,256,577,429.14/805,454.88
  6. Step 6: Final answer
    x = 611,153.51

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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.