Home / 648,473.10-972,855.45-199,214.70

Finding the Fourth Proportional to 648,473.10, 972,855.45 and 199,214.70

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Solution

The fourth proportional to 648,473.10, 972,855.45 and 199,214.70 is: 298,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,473.10 : 972,855.45 = 199,214.70 : x
  2. Step 2: Convert to fraction form
    648,473.10/972,855.45 = 199,214.70/x
  3. Step 3: Cross multiply
    648,473.10x = 972,855.45 × 199,214.70
  4. Step 4: Simplify right side
    648,473.10x = 193,807,106,615.12
  5. Step 5: Solve for x
    x = 193,807,106,615.12/648,473.10
  6. Step 6: Final answer
    x = 298,866.84

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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.