Home / 644,629.10-966,603.45-218,018.30

Finding the Fourth Proportional to 644,629.10, 966,603.45 and 218,018.30

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Solution

The fourth proportional to 644,629.10, 966,603.45 and 218,018.30 is: 326,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,629.10 : 966,603.45 = 218,018.30 : x
  2. Step 2: Convert to fraction form
    644,629.10/966,603.45 = 218,018.30/x
  3. Step 3: Cross multiply
    644,629.10x = 966,603.45 × 218,018.30
  4. Step 4: Simplify right side
    644,629.10x = 210,737,240,943.14
  5. Step 5: Solve for x
    x = 210,737,240,943.14/644,629.10
  6. Step 6: Final answer
    x = 326,912.39

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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.