Home / 1,378,485.40-2,068,008.35-479,997.20

Finding the Fourth Proportional to 1,378,485.40, 2,068,008.35 and 479,997.20

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Solution

The fourth proportional to 1,378,485.40, 2,068,008.35 and 479,997.20 is: 720,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,485.40 : 2,068,008.35 = 479,997.20 : x
  2. Step 2: Convert to fraction form
    1,378,485.40/2,068,008.35 = 479,997.20/x
  3. Step 3: Cross multiply
    1,378,485.40x = 2,068,008.35 × 479,997.20
  4. Step 4: Simplify right side
    1,378,485.40x = 992,638,217,576.62
  5. Step 5: Solve for x
    x = 992,638,217,576.62/1,378,485.40
  6. Step 6: Final answer
    x = 720,093.38

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1.5x scale

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.