Home / 648,139.40-971,748.30-248,625.80

Finding the Fourth Proportional to 648,139.40, 971,748.30 and 248,625.80

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Solution

The fourth proportional to 648,139.40, 971,748.30 and 248,625.80 is: 372,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,139.40 : 971,748.30 = 248,625.80 : x
  2. Step 2: Convert to fraction form
    648,139.40/971,748.30 = 248,625.80/x
  3. Step 3: Cross multiply
    648,139.40x = 971,748.30 × 248,625.80
  4. Step 4: Simplify right side
    648,139.40x = 241,601,698,486.14
  5. Step 5: Solve for x
    x = 241,601,698,486.14/648,139.40
  6. Step 6: Final answer
    x = 372,761.94

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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.