Home / 921,343.16-1,382,211.56-322,323.86

Finding the Fourth Proportional to 921,343.16, 1,382,211.56 and 322,323.86

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Solution

The fourth proportional to 921,343.16, 1,382,211.56 and 322,323.86 is: 483,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,343.16 : 1,382,211.56 = 322,323.86 : x
  2. Step 2: Convert to fraction form
    921,343.16/1,382,211.56 = 322,323.86/x
  3. Step 3: Cross multiply
    921,343.16x = 1,382,211.56 × 322,323.86
  4. Step 4: Simplify right side
    921,343.16x = 445,519,765,355.82
  5. Step 5: Solve for x
    x = 445,519,765,355.82/921,343.16
  6. Step 6: Final answer
    x = 483,554.65

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1.5x scale

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.