Home / 1,090,885.80-1,505,632.74-661,401.16

Finding the Fourth Proportional to 1,090,885.80, 1,505,632.74 and 661,401.16

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Solution

The fourth proportional to 1,090,885.80, 1,505,632.74 and 661,401.16 is: 912,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,885.80 : 1,505,632.74 = 661,401.16 : x
  2. Step 2: Convert to fraction form
    1,090,885.80/1,505,632.74 = 661,401.16/x
  3. Step 3: Cross multiply
    1,090,885.80x = 1,505,632.74 × 661,401.16
  4. Step 4: Simplify right side
    1,090,885.80x = 995,827,240,769.98
  5. Step 5: Solve for x
    x = 995,827,240,769.98/1,090,885.80
  6. Step 6: Final answer
    x = 912,861.13

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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.