Home / 1,640,245.40-2,459,907.30-518,658.20

Finding the Fourth Proportional to 1,640,245.40, 2,459,907.30 and 518,658.20

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Solution

The fourth proportional to 1,640,245.40, 2,459,907.30 and 518,658.20 is: 777,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,245.40 : 2,459,907.30 = 518,658.20 : x
  2. Step 2: Convert to fraction form
    1,640,245.40/2,459,907.30 = 518,658.20/x
  3. Step 3: Cross multiply
    1,640,245.40x = 2,459,907.30 × 518,658.20
  4. Step 4: Simplify right side
    1,640,245.40x = 1,275,851,092,384.86
  5. Step 5: Solve for x
    x = 1,275,851,092,384.86/1,640,245.40
  6. Step 6: Final answer
    x = 777,841.59

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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.