Home / 1,787,890.39-2,681,775.42-777,012.46

Finding the Fourth Proportional to 1,787,890.39, 2,681,775.42 and 777,012.46

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Solution

The fourth proportional to 1,787,890.39, 2,681,775.42 and 777,012.46 is: 1,165,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,890.39 : 2,681,775.42 = 777,012.46 : x
  2. Step 2: Convert to fraction form
    1,787,890.39/2,681,775.42 = 777,012.46/x
  3. Step 3: Cross multiply
    1,787,890.39x = 2,681,775.42 × 777,012.46
  4. Step 4: Simplify right side
    1,787,890.39x = 2,083,772,902,852.86
  5. Step 5: Solve for x
    x = 2,083,772,902,852.86/1,787,890.39
  6. Step 6: Final answer
    x = 1,165,492.54

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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.