Home / 1,286,072.86-1,928,715.15-889,263.58

Finding the Fourth Proportional to 1,286,072.86, 1,928,715.15 and 889,263.58

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Solution

The fourth proportional to 1,286,072.86, 1,928,715.15 and 889,263.58 is: 1,333,622.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,072.86 : 1,928,715.15 = 889,263.58 : x
  2. Step 2: Convert to fraction form
    1,286,072.86/1,928,715.15 = 889,263.58/x
  3. Step 3: Cross multiply
    1,286,072.86x = 1,928,715.15 × 889,263.58
  4. Step 4: Simplify right side
    1,286,072.86x = 1,715,136,139,089.24
  5. Step 5: Solve for x
    x = 1,715,136,139,089.24/1,286,072.86
  6. Step 6: Final answer
    x = 1,333,622.84

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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.