Home / 1,355,086.35-1,869,930.18-774,339.48

Finding the Fourth Proportional to 1,355,086.35, 1,869,930.18 and 774,339.48

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Solution

The fourth proportional to 1,355,086.35, 1,869,930.18 and 774,339.48 is: 1,068,537.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,086.35 : 1,869,930.18 = 774,339.48 : x
  2. Step 2: Convert to fraction form
    1,355,086.35/1,869,930.18 = 774,339.48/x
  3. Step 3: Cross multiply
    1,355,086.35x = 1,869,930.18 × 774,339.48
  4. Step 4: Simplify right side
    1,355,086.35x = 1,447,960,763,217.51
  5. Step 5: Solve for x
    x = 1,447,960,763,217.51/1,355,086.35
  6. Step 6: Final answer
    x = 1,068,537.63

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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.