Home / 921,818.70-1,382,728.05-669,876.30

Finding the Fourth Proportional to 921,818.70, 1,382,728.05 and 669,876.30

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Solution

The fourth proportional to 921,818.70, 1,382,728.05 and 669,876.30 is: 1,004,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,818.70 : 1,382,728.05 = 669,876.30 : x
  2. Step 2: Convert to fraction form
    921,818.70/1,382,728.05 = 669,876.30/x
  3. Step 3: Cross multiply
    921,818.70x = 1,382,728.05 × 669,876.30
  4. Step 4: Simplify right side
    921,818.70x = 926,256,750,040.22
  5. Step 5: Solve for x
    x = 926,256,750,040.22/921,818.70
  6. Step 6: Final answer
    x = 1,004,814.45

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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.