Home / 1,420,360.74-2,130,546.78-355,399.74

Finding the Fourth Proportional to 1,420,360.74, 2,130,546.78 and 355,399.74

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Solution

The fourth proportional to 1,420,360.74, 2,130,546.78 and 355,399.74 is: 533,101.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,360.74 : 2,130,546.78 = 355,399.74 : x
  2. Step 2: Convert to fraction form
    1,420,360.74/2,130,546.78 = 355,399.74/x
  3. Step 3: Cross multiply
    1,420,360.74x = 2,130,546.78 × 355,399.74
  4. Step 4: Simplify right side
    1,420,360.74x = 757,195,771,669.84
  5. Step 5: Solve for x
    x = 757,195,771,669.84/1,420,360.74
  6. Step 6: Final answer
    x = 533,101.03

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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.