Home / 1,619,089.90-2,430,103.65-820,926.70

Finding the Fourth Proportional to 1,619,089.90, 2,430,103.65 and 820,926.70

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Solution

The fourth proportional to 1,619,089.90, 2,430,103.65 and 820,926.70 is: 1,232,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,089.90 : 2,430,103.65 = 820,926.70 : x
  2. Step 2: Convert to fraction form
    1,619,089.90/2,430,103.65 = 820,926.70/x
  3. Step 3: Cross multiply
    1,619,089.90x = 2,430,103.65 × 820,926.70
  4. Step 4: Simplify right side
    1,619,089.90x = 1,994,936,970,052.45
  5. Step 5: Solve for x
    x = 1,994,936,970,052.45/1,619,089.90
  6. Step 6: Final answer
    x = 1,232,134.78

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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.