Home / 922,000.78-1,382,212.32-353,789.64

Finding the Fourth Proportional to 922,000.78, 1,382,212.32 and 353,789.64

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Solution

The fourth proportional to 922,000.78, 1,382,212.32 and 353,789.64 is: 530,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,000.78 : 1,382,212.32 = 353,789.64 : x
  2. Step 2: Convert to fraction form
    922,000.78/1,382,212.32 = 353,789.64/x
  3. Step 3: Cross multiply
    922,000.78x = 1,382,212.32 × 353,789.64
  4. Step 4: Simplify right side
    922,000.78x = 489,012,399,096.37
  5. Step 5: Solve for x
    x = 489,012,399,096.37/922,000.78
  6. Step 6: Final answer
    x = 530,381.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.