Home / 790,932-1,091,486.40-451,392.96

Finding the Fourth Proportional to 790,932, 1,091,486.40 and 451,392.96

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Solution

The fourth proportional to 790,932, 1,091,486.40 and 451,392.96 is: 622,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,932 : 1,091,486.40 = 451,392.96 : x
  2. Step 2: Convert to fraction form
    790,932/1,091,486.40 = 451,392.96/x
  3. Step 3: Cross multiply
    790,932x = 1,091,486.40 × 451,392.96
  4. Step 4: Simplify right side
    790,932x = 492,689,276,895.74
  5. Step 5: Solve for x
    x = 492,689,276,895.74/790,932
  6. Step 6: Final answer
    x = 622,922.42

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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.