Home / 1,918,795.57-2,879,697.39-1,338,646.03

Finding the Fourth Proportional to 1,918,795.57, 2,879,697.39 and 1,338,646.03

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Solution

The fourth proportional to 1,918,795.57, 2,879,697.39 and 1,338,646.03 is: 2,009,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,795.57 : 2,879,697.39 = 1,338,646.03 : x
  2. Step 2: Convert to fraction form
    1,918,795.57/2,879,697.39 = 1,338,646.03/x
  3. Step 3: Cross multiply
    1,918,795.57x = 2,879,697.39 × 1,338,646.03
  4. Step 4: Simplify right side
    1,918,795.57x = 3,854,895,478,724.86
  5. Step 5: Solve for x
    x = 3,854,895,478,724.86/1,918,795.57
  6. Step 6: Final answer
    x = 2,009,018.33

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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.