Home / 805,371.12-1,111,354.92-442,785.60

Finding the Fourth Proportional to 805,371.12, 1,111,354.92 and 442,785.60

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Solution

The fourth proportional to 805,371.12, 1,111,354.92 and 442,785.60 is: 611,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,371.12 : 1,111,354.92 = 442,785.60 : x
  2. Step 2: Convert to fraction form
    805,371.12/1,111,354.92 = 442,785.60/x
  3. Step 3: Cross multiply
    805,371.12x = 1,111,354.92 × 442,785.60
  4. Step 4: Simplify right side
    805,371.12x = 492,091,955,065.15
  5. Step 5: Solve for x
    x = 492,091,955,065.15/805,371.12
  6. Step 6: Final answer
    x = 611,012.67

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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.