Home / 919,503.80-1,379,255.70-545,948.60

Finding the Fourth Proportional to 919,503.80, 1,379,255.70 and 545,948.60

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Solution

The fourth proportional to 919,503.80, 1,379,255.70 and 545,948.60 is: 818,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,503.80 : 1,379,255.70 = 545,948.60 : x
  2. Step 2: Convert to fraction form
    919,503.80/1,379,255.70 = 545,948.60/x
  3. Step 3: Cross multiply
    919,503.80x = 1,379,255.70 × 545,948.60
  4. Step 4: Simplify right side
    919,503.80x = 753,002,718,457.02
  5. Step 5: Solve for x
    x = 753,002,718,457.02/919,503.80
  6. Step 6: Final answer
    x = 818,922.90

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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.