Home / 809,421.30-1,117,003.02-446,845.66

Finding the Fourth Proportional to 809,421.30, 1,117,003.02 and 446,845.66

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Solution

The fourth proportional to 809,421.30, 1,117,003.02 and 446,845.66 is: 616,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,421.30 : 1,117,003.02 = 446,845.66 : x
  2. Step 2: Convert to fraction form
    809,421.30/1,117,003.02 = 446,845.66/x
  3. Step 3: Cross multiply
    809,421.30x = 1,117,003.02 × 446,845.66
  4. Step 4: Simplify right side
    809,421.30x = 499,127,951,693.89
  5. Step 5: Solve for x
    x = 499,127,951,693.89/809,421.30
  6. Step 6: Final answer
    x = 616,647.91

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Double scale
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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.