Home / 3,315,123.78-4,972,192.98-918,718.56

Finding the Fourth Proportional to 3,315,123.78, 4,972,192.98 and 918,718.56

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Solution

The fourth proportional to 3,315,123.78, 4,972,192.98 and 918,718.56 is: 1,377,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,123.78 : 4,972,192.98 = 918,718.56 : x
  2. Step 2: Convert to fraction form
    3,315,123.78/4,972,192.98 = 918,718.56/x
  3. Step 3: Cross multiply
    3,315,123.78x = 4,972,192.98 × 918,718.56
  4. Step 4: Simplify right side
    3,315,123.78x = 4,568,045,974,627.71
  5. Step 5: Solve for x
    x = 4,568,045,974,627.71/3,315,123.78
  6. Step 6: Final answer
    x = 1,377,941.30

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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.