Home / 1,312,884.38-1,811,780.64-709,272.38

Finding the Fourth Proportional to 1,312,884.38, 1,811,780.64 and 709,272.38

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Solution

The fourth proportional to 1,312,884.38, 1,811,780.64 and 709,272.38 is: 978,795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,884.38 : 1,811,780.64 = 709,272.38 : x
  2. Step 2: Convert to fraction form
    1,312,884.38/1,811,780.64 = 709,272.38/x
  3. Step 3: Cross multiply
    1,312,884.38x = 1,811,780.64 × 709,272.38
  4. Step 4: Simplify right side
    1,312,884.38x = 1,285,045,957,511.82
  5. Step 5: Solve for x
    x = 1,285,045,957,511.82/1,312,884.38
  6. Step 6: Final answer
    x = 978,795.99

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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.