Home / 1,021,391.10-1,410,123.33-907,885.80

Finding the Fourth Proportional to 1,021,391.10, 1,410,123.33 and 907,885.80

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Solution

The fourth proportional to 1,021,391.10, 1,410,123.33 and 907,885.80 is: 1,253,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,391.10 : 1,410,123.33 = 907,885.80 : x
  2. Step 2: Convert to fraction form
    1,021,391.10/1,410,123.33 = 907,885.80/x
  3. Step 3: Cross multiply
    1,021,391.10x = 1,410,123.33 × 907,885.80
  4. Step 4: Simplify right side
    1,021,391.10x = 1,280,230,947,555.71
  5. Step 5: Solve for x
    x = 1,280,230,947,555.71/1,021,391.10
  6. Step 6: Final answer
    x = 1,253,418.94

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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.