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Finding the Fourth Proportional to 485,573.10, 670,513.99 and 304,596.11

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Solution

The fourth proportional to 485,573.10, 670,513.99 and 304,596.11 is: 420,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,573.10 : 670,513.99 = 304,596.11 : x
  2. Step 2: Convert to fraction form
    485,573.10/670,513.99 = 304,596.11/x
  3. Step 3: Cross multiply
    485,573.10x = 670,513.99 × 304,596.11
  4. Step 4: Simplify right side
    485,573.10x = 204,235,953,969.37
  5. Step 5: Solve for x
    x = 204,235,953,969.37/485,573.10
  6. Step 6: Final answer
    x = 420,608.05

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1.5x scale

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.