Home / 1,207,610.13-1,666,659.66-779,136.75

Finding the Fourth Proportional to 1,207,610.13, 1,666,659.66 and 779,136.75

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Solution

The fourth proportional to 1,207,610.13, 1,666,659.66 and 779,136.75 is: 1,075,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,610.13 : 1,666,659.66 = 779,136.75 : x
  2. Step 2: Convert to fraction form
    1,207,610.13/1,666,659.66 = 779,136.75/x
  3. Step 3: Cross multiply
    1,207,610.13x = 1,666,659.66 × 779,136.75
  4. Step 4: Simplify right side
    1,207,610.13x = 1,298,555,790,848.50
  5. Step 5: Solve for x
    x = 1,298,555,790,848.50/1,207,610.13
  6. Step 6: Final answer
    x = 1,075,310.45

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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.