Home / 809,420.68-1,117,004.76-446,837.92

Finding the Fourth Proportional to 809,420.68, 1,117,004.76 and 446,837.92

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Solution

The fourth proportional to 809,420.68, 1,117,004.76 and 446,837.92 is: 616,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,420.68 : 1,117,004.76 = 446,837.92 : x
  2. Step 2: Convert to fraction form
    809,420.68/1,117,004.76 = 446,837.92/x
  3. Step 3: Cross multiply
    809,420.68x = 1,117,004.76 × 446,837.92
  4. Step 4: Simplify right side
    809,420.68x = 499,120,083,588.50
  5. Step 5: Solve for x
    x = 499,120,083,588.50/809,420.68
  6. Step 6: Final answer
    x = 616,638.66

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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.