Home / 648,715.60-973,166.40-199,474.20

Finding the Fourth Proportional to 648,715.60, 973,166.40 and 199,474.20

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Solution

The fourth proportional to 648,715.60, 973,166.40 and 199,474.20 is: 299,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,715.60 : 973,166.40 = 199,474.20 : x
  2. Step 2: Convert to fraction form
    648,715.60/973,166.40 = 199,474.20/x
  3. Step 3: Cross multiply
    648,715.60x = 973,166.40 × 199,474.20
  4. Step 4: Simplify right side
    648,715.60x = 194,121,589,106.88
  5. Step 5: Solve for x
    x = 194,121,589,106.88/648,715.60
  6. Step 6: Final answer
    x = 299,239.90

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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.