Home / 1,578,933.15-2,178,926.16-853,779.12

Finding the Fourth Proportional to 1,578,933.15, 2,178,926.16 and 853,779.12

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Solution

The fourth proportional to 1,578,933.15, 2,178,926.16 and 853,779.12 is: 1,178,214.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,933.15 : 2,178,926.16 = 853,779.12 : x
  2. Step 2: Convert to fraction form
    1,578,933.15/2,178,926.16 = 853,779.12/x
  3. Step 3: Cross multiply
    1,578,933.15x = 2,178,926.16 × 853,779.12
  4. Step 4: Simplify right side
    1,578,933.15x = 1,860,321,659,429.78
  5. Step 5: Solve for x
    x = 1,860,321,659,429.78/1,578,933.15
  6. Step 6: Final answer
    x = 1,178,214.33

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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.