Home / 1,920,144.68-2,650,123.14-1,115,795.24

Finding the Fourth Proportional to 1,920,144.68, 2,650,123.14 and 1,115,795.24

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Solution

The fourth proportional to 1,920,144.68, 2,650,123.14 and 1,115,795.24 is: 1,539,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,144.68 : 2,650,123.14 = 1,115,795.24 : x
  2. Step 2: Convert to fraction form
    1,920,144.68/2,650,123.14 = 1,115,795.24/x
  3. Step 3: Cross multiply
    1,920,144.68x = 2,650,123.14 × 1,115,795.24
  4. Step 4: Simplify right side
    1,920,144.68x = 2,956,994,785,025.85
  5. Step 5: Solve for x
    x = 2,956,994,785,025.85/1,920,144.68
  6. Step 6: Final answer
    x = 1,539,985.41

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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.