Home / 1,391,720.89-2,084,037.47-916,966.93

Finding the Fourth Proportional to 1,391,720.89, 2,084,037.47 and 916,966.93

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Solution

The fourth proportional to 1,391,720.89, 2,084,037.47 and 916,966.93 is: 1,373,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,720.89 : 2,084,037.47 = 916,966.93 : x
  2. Step 2: Convert to fraction form
    1,391,720.89/2,084,037.47 = 916,966.93/x
  3. Step 3: Cross multiply
    1,391,720.89x = 2,084,037.47 × 916,966.93
  4. Step 4: Simplify right side
    1,391,720.89x = 1,910,993,430,450.68
  5. Step 5: Solve for x
    x = 1,910,993,430,450.68/1,391,720.89
  6. Step 6: Final answer
    x = 1,373,115.44

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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.