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Finding the Fourth Proportional to 667,048.49, 920,525.76 and 361,124.76

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Solution

The fourth proportional to 667,048.49, 920,525.76 and 361,124.76 is: 498,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,048.49 : 920,525.76 = 361,124.76 : x
  2. Step 2: Convert to fraction form
    667,048.49/920,525.76 = 361,124.76/x
  3. Step 3: Cross multiply
    667,048.49x = 920,525.76 × 361,124.76
  4. Step 4: Simplify right side
    667,048.49x = 332,424,644,153.82
  5. Step 5: Solve for x
    x = 332,424,644,153.82/667,048.49
  6. Step 6: Final answer
    x = 498,351.55

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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.