Home / 1,286,037.80-1,928,662.70-889,228.52

Finding the Fourth Proportional to 1,286,037.80, 1,928,662.70 and 889,228.52

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Solution

The fourth proportional to 1,286,037.80, 1,928,662.70 and 889,228.52 is: 1,333,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,037.80 : 1,928,662.70 = 889,228.52 : x
  2. Step 2: Convert to fraction form
    1,286,037.80/1,928,662.70 = 889,228.52/x
  3. Step 3: Cross multiply
    1,286,037.80x = 1,928,662.70 × 889,228.52
  4. Step 4: Simplify right side
    1,286,037.80x = 1,715,021,878,300.20
  5. Step 5: Solve for x
    x = 1,715,021,878,300.20/1,286,037.80
  6. Step 6: Final answer
    x = 1,333,570.35

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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.