Home / 809,381.74-1,116,867.18-446,782.20

Finding the Fourth Proportional to 809,381.74, 1,116,867.18 and 446,782.20

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Solution

The fourth proportional to 809,381.74, 1,116,867.18 and 446,782.20 is: 616,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,381.74 : 1,116,867.18 = 446,782.20 : x
  2. Step 2: Convert to fraction form
    809,381.74/1,116,867.18 = 446,782.20/x
  3. Step 3: Cross multiply
    809,381.74x = 1,116,867.18 × 446,782.20
  4. Step 4: Simplify right side
    809,381.74x = 498,996,370,203.86
  5. Step 5: Solve for x
    x = 498,996,370,203.86/809,381.74
  6. Step 6: Final answer
    x = 616,515.48

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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.