Home / 1,385,161.60-2,079,427.20-879,721.60

Finding the Fourth Proportional to 1,385,161.60, 2,079,427.20 and 879,721.60

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Solution

The fourth proportional to 1,385,161.60, 2,079,427.20 and 879,721.60 is: 1,320,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,161.60 : 2,079,427.20 = 879,721.60 : x
  2. Step 2: Convert to fraction form
    1,385,161.60/2,079,427.20 = 879,721.60/x
  3. Step 3: Cross multiply
    1,385,161.60x = 2,079,427.20 × 879,721.60
  4. Step 4: Simplify right side
    1,385,161.60x = 1,829,317,023,467.52
  5. Step 5: Solve for x
    x = 1,829,317,023,467.52/1,385,161.60
  6. Step 6: Final answer
    x = 1,320,652.42

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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.