Home / 1,240,589.70-1,860,884.55-1,188,101.70

Finding the Fourth Proportional to 1,240,589.70, 1,860,884.55 and 1,188,101.70

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Solution

The fourth proportional to 1,240,589.70, 1,860,884.55 and 1,188,101.70 is: 1,782,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,589.70 : 1,860,884.55 = 1,188,101.70 : x
  2. Step 2: Convert to fraction form
    1,240,589.70/1,860,884.55 = 1,188,101.70/x
  3. Step 3: Cross multiply
    1,240,589.70x = 1,860,884.55 × 1,188,101.70
  4. Step 4: Simplify right side
    1,240,589.70x = 2,210,920,097,358.74
  5. Step 5: Solve for x
    x = 2,210,920,097,358.74/1,240,589.70
  6. Step 6: Final answer
    x = 1,782,152.55

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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.