Home / 648,128.40-971,731.80-248,614.80

Finding the Fourth Proportional to 648,128.40, 971,731.80 and 248,614.80

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Solution

The fourth proportional to 648,128.40, 971,731.80 and 248,614.80 is: 372,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,128.40 : 971,731.80 = 248,614.80 : x
  2. Step 2: Convert to fraction form
    648,128.40/971,731.80 = 248,614.80/x
  3. Step 3: Cross multiply
    648,128.40x = 971,731.80 × 248,614.80
  4. Step 4: Simplify right side
    648,128.40x = 241,586,907,110.64
  5. Step 5: Solve for x
    x = 241,586,907,110.64/648,128.40
  6. Step 6: Final answer
    x = 372,745.44

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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.