Home / 1,090,393.60-1,635,007.20-380,444.80

Finding the Fourth Proportional to 1,090,393.60, 1,635,007.20 and 380,444.80

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Solution

The fourth proportional to 1,090,393.60, 1,635,007.20 and 380,444.80 is: 570,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,393.60 : 1,635,007.20 = 380,444.80 : x
  2. Step 2: Convert to fraction form
    1,090,393.60/1,635,007.20 = 380,444.80/x
  3. Step 3: Cross multiply
    1,090,393.60x = 1,635,007.20 × 380,444.80
  4. Step 4: Simplify right side
    1,090,393.60x = 622,029,987,202.56
  5. Step 5: Solve for x
    x = 622,029,987,202.56/1,090,393.60
  6. Step 6: Final answer
    x = 570,463.72

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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.