Home / 805,414.56-1,111,484.88-442,854.24

Finding the Fourth Proportional to 805,414.56, 1,111,484.88 and 442,854.24

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Solution

The fourth proportional to 805,414.56, 1,111,484.88 and 442,854.24 is: 611,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,414.56 : 1,111,484.88 = 442,854.24 : x
  2. Step 2: Convert to fraction form
    805,414.56/1,111,484.88 = 442,854.24/x
  3. Step 3: Cross multiply
    805,414.56x = 1,111,484.88 × 442,854.24
  4. Step 4: Simplify right side
    805,414.56x = 492,225,791,803.89
  5. Step 5: Solve for x
    x = 492,225,791,803.89/805,414.56
  6. Step 6: Final answer
    x = 611,145.88

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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.