Home / 3,128,002.20-4,688,504.10-1,330,579.80

Finding the Fourth Proportional to 3,128,002.20, 4,688,504.10 and 1,330,579.80

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Solution

The fourth proportional to 3,128,002.20, 4,688,504.10 and 1,330,579.80 is: 1,994,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,002.20 : 4,688,504.10 = 1,330,579.80 : x
  2. Step 2: Convert to fraction form
    3,128,002.20/4,688,504.10 = 1,330,579.80/x
  3. Step 3: Cross multiply
    3,128,002.20x = 4,688,504.10 × 1,330,579.80
  4. Step 4: Simplify right side
    3,128,002.20x = 6,238,428,847,677.18
  5. Step 5: Solve for x
    x = 6,238,428,847,677.18/3,128,002.20
  6. Step 6: Final answer
    x = 1,994,381.22

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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.