Home / 667,070.24-920,557.20-361,146.60

Finding the Fourth Proportional to 667,070.24, 920,557.20 and 361,146.60

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Solution

The fourth proportional to 667,070.24, 920,557.20 and 361,146.60 is: 498,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,070.24 : 920,557.20 = 361,146.60 : x
  2. Step 2: Convert to fraction form
    667,070.24/920,557.20 = 361,146.60/x
  3. Step 3: Cross multiply
    667,070.24x = 920,557.20 × 361,146.60
  4. Step 4: Simplify right side
    667,070.24x = 332,456,104,239.82
  5. Step 5: Solve for x
    x = 332,456,104,239.82/667,070.24
  6. Step 6: Final answer
    x = 498,382.46

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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.