Home / 1,188,172.08-1,782,427.60-389,282.84

Finding the Fourth Proportional to 1,188,172.08, 1,782,427.60 and 389,282.84

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Solution

The fourth proportional to 1,188,172.08, 1,782,427.60 and 389,282.84 is: 583,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,172.08 : 1,782,427.60 = 389,282.84 : x
  2. Step 2: Convert to fraction form
    1,188,172.08/1,782,427.60 = 389,282.84/x
  3. Step 3: Cross multiply
    1,188,172.08x = 1,782,427.60 × 389,282.84
  4. Step 4: Simplify right side
    1,188,172.08x = 693,868,478,222.38
  5. Step 5: Solve for x
    x = 693,868,478,222.38/1,188,172.08
  6. Step 6: Final answer
    x = 583,979.79

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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.