Home / 903,872.40-1,355,923.80-343,067.28

Finding the Fourth Proportional to 903,872.40, 1,355,923.80 and 343,067.28

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Solution

The fourth proportional to 903,872.40, 1,355,923.80 and 343,067.28 is: 514,644.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,872.40 : 1,355,923.80 = 343,067.28 : x
  2. Step 2: Convert to fraction form
    903,872.40/1,355,923.80 = 343,067.28/x
  3. Step 3: Cross multiply
    903,872.40x = 1,355,923.80 × 343,067.28
  4. Step 4: Simplify right side
    903,872.40x = 465,173,089,953.26
  5. Step 5: Solve for x
    x = 465,173,089,953.26/903,872.40
  6. Step 6: Final answer
    x = 514,644.64

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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.