Home / 1,129,770-1,694,653.44-288,321.72

Finding the Fourth Proportional to 1,129,770, 1,694,653.44 and 288,321.72

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Solution

The fourth proportional to 1,129,770, 1,694,653.44 and 288,321.72 is: 432,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,770 : 1,694,653.44 = 288,321.72 : x
  2. Step 2: Convert to fraction form
    1,129,770/1,694,653.44 = 288,321.72/x
  3. Step 3: Cross multiply
    1,129,770x = 1,694,653.44 × 288,321.72
  4. Step 4: Simplify right side
    1,129,770x = 488,605,394,624.72
  5. Step 5: Solve for x
    x = 488,605,394,624.72/1,129,770
  6. Step 6: Final answer
    x = 432,482.18

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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.