Home / 805,341.70-1,111,372.26-442,771.72

Finding the Fourth Proportional to 805,341.70, 1,111,372.26 and 442,771.72

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Solution

The fourth proportional to 805,341.70, 1,111,372.26 and 442,771.72 is: 611,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,341.70 : 1,111,372.26 = 442,771.72 : x
  2. Step 2: Convert to fraction form
    805,341.70/1,111,372.26 = 442,771.72/x
  3. Step 3: Cross multiply
    805,341.70x = 1,111,372.26 × 442,771.72
  4. Step 4: Simplify right side
    805,341.70x = 492,084,207,120.49
  5. Step 5: Solve for x
    x = 492,084,207,120.49/805,341.70
  6. Step 6: Final answer
    x = 611,025.37

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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.