Home / 1,211,627.70-1,672,038.45-667,764

Finding the Fourth Proportional to 1,211,627.70, 1,672,038.45 and 667,764

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Solution

The fourth proportional to 1,211,627.70, 1,672,038.45 and 667,764 is: 921,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,627.70 : 1,672,038.45 = 667,764 : x
  2. Step 2: Convert to fraction form
    1,211,627.70/1,672,038.45 = 667,764/x
  3. Step 3: Cross multiply
    1,211,627.70x = 1,672,038.45 × 667,764
  4. Step 4: Simplify right side
    1,211,627.70x = 1,116,527,083,525.80
  5. Step 5: Solve for x
    x = 1,116,527,083,525.80/1,211,627.70
  6. Step 6: Final answer
    x = 921,510.03

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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.