Home / 469,300.24-647,464.62-308,242.60

Finding the Fourth Proportional to 469,300.24, 647,464.62 and 308,242.60

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Solution

The fourth proportional to 469,300.24, 647,464.62 and 308,242.60 is: 425,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,300.24 : 647,464.62 = 308,242.60 : x
  2. Step 2: Convert to fraction form
    469,300.24/647,464.62 = 308,242.60/x
  3. Step 3: Cross multiply
    469,300.24x = 647,464.62 × 308,242.60
  4. Step 4: Simplify right side
    469,300.24x = 199,576,177,876.81
  5. Step 5: Solve for x
    x = 199,576,177,876.81/469,300.24
  6. Step 6: Final answer
    x = 425,263.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.