Home / 809,475.40-1,117,077.70-446,899.96

Finding the Fourth Proportional to 809,475.40, 1,117,077.70 and 446,899.96

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Solution

The fourth proportional to 809,475.40, 1,117,077.70 and 446,899.96 is: 616,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,475.40 : 1,117,077.70 = 446,899.96 : x
  2. Step 2: Convert to fraction form
    809,475.40/1,117,077.70 = 446,899.96/x
  3. Step 3: Cross multiply
    809,475.40x = 1,117,077.70 × 446,899.96
  4. Step 4: Simplify right side
    809,475.40x = 499,221,979,446.89
  5. Step 5: Solve for x
    x = 499,221,979,446.89/809,475.40
  6. Step 6: Final answer
    x = 616,722.85

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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.