Home / 648,003.60-971,880.12-198,615.60

Finding the Fourth Proportional to 648,003.60, 971,880.12 and 198,615.60

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Solution

The fourth proportional to 648,003.60, 971,880.12 and 198,615.60 is: 297,885.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,003.60 : 971,880.12 = 198,615.60 : x
  2. Step 2: Convert to fraction form
    648,003.60/971,880.12 = 198,615.60/x
  3. Step 3: Cross multiply
    648,003.60x = 971,880.12 × 198,615.60
  4. Step 4: Simplify right side
    648,003.60x = 193,030,553,161.87
  5. Step 5: Solve for x
    x = 193,030,553,161.87/648,003.60
  6. Step 6: Final answer
    x = 297,885.00

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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.