Home / 1,139,788.67-1,572,754.32-649,821.39

Finding the Fourth Proportional to 1,139,788.67, 1,572,754.32 and 649,821.39

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Solution

The fourth proportional to 1,139,788.67, 1,572,754.32 and 649,821.39 is: 896,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,788.67 : 1,572,754.32 = 649,821.39 : x
  2. Step 2: Convert to fraction form
    1,139,788.67/1,572,754.32 = 649,821.39/x
  3. Step 3: Cross multiply
    1,139,788.67x = 1,572,754.32 × 649,821.39
  4. Step 4: Simplify right side
    1,139,788.67x = 1,022,009,392,453.08
  5. Step 5: Solve for x
    x = 1,022,009,392,453.08/1,139,788.67
  6. Step 6: Final answer
    x = 896,665.69

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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.