Home / 1,286,790.57-1,930,482.38-445,342.32

Finding the Fourth Proportional to 1,286,790.57, 1,930,482.38 and 445,342.32

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Solution

The fourth proportional to 1,286,790.57, 1,930,482.38 and 445,342.32 is: 668,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,790.57 : 1,930,482.38 = 445,342.32 : x
  2. Step 2: Convert to fraction form
    1,286,790.57/1,930,482.38 = 445,342.32/x
  3. Step 3: Cross multiply
    1,286,790.57x = 1,930,482.38 × 445,342.32
  4. Step 4: Simplify right side
    1,286,790.57x = 859,725,502,941.68
  5. Step 5: Solve for x
    x = 859,725,502,941.68/1,286,790.57
  6. Step 6: Final answer
    x = 668,116.10

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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.