Home / 1,761,603.20-2,642,404.80-920,412.80

Finding the Fourth Proportional to 1,761,603.20, 2,642,404.80 and 920,412.80

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Solution

The fourth proportional to 1,761,603.20, 2,642,404.80 and 920,412.80 is: 1,380,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,603.20 : 2,642,404.80 = 920,412.80 : x
  2. Step 2: Convert to fraction form
    1,761,603.20/2,642,404.80 = 920,412.80/x
  3. Step 3: Cross multiply
    1,761,603.20x = 2,642,404.80 × 920,412.80
  4. Step 4: Simplify right side
    1,761,603.20x = 2,432,103,200,701.44
  5. Step 5: Solve for x
    x = 2,432,103,200,701.44/1,761,603.20
  6. Step 6: Final answer
    x = 1,380,619.20

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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.