Home / 1,110,796.81-1,666,139.85-391,174.03

Finding the Fourth Proportional to 1,110,796.81, 1,666,139.85 and 391,174.03

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Solution

The fourth proportional to 1,110,796.81, 1,666,139.85 and 391,174.03 is: 586,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,796.81 : 1,666,139.85 = 391,174.03 : x
  2. Step 2: Convert to fraction form
    1,110,796.81/1,666,139.85 = 391,174.03/x
  3. Step 3: Cross multiply
    1,110,796.81x = 1,666,139.85 × 391,174.03
  4. Step 4: Simplify right side
    1,110,796.81x = 651,750,639,668.10
  5. Step 5: Solve for x
    x = 651,750,639,668.10/1,110,796.81
  6. Step 6: Final answer
    x = 586,741.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.