Home / 1,098,206.40-1,647,579.60-378,559.20

Finding the Fourth Proportional to 1,098,206.40, 1,647,579.60 and 378,559.20

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Solution

The fourth proportional to 1,098,206.40, 1,647,579.60 and 378,559.20 is: 567,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,206.40 : 1,647,579.60 = 378,559.20 : x
  2. Step 2: Convert to fraction form
    1,098,206.40/1,647,579.60 = 378,559.20/x
  3. Step 3: Cross multiply
    1,098,206.40x = 1,647,579.60 × 378,559.20
  4. Step 4: Simplify right side
    1,098,206.40x = 623,706,415,312.32
  5. Step 5: Solve for x
    x = 623,706,415,312.32/1,098,206.40
  6. Step 6: Final answer
    x = 567,931.87

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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.