Home / 1,685,780.51-2,529,307.82-1,012,331.32

Finding the Fourth Proportional to 1,685,780.51, 2,529,307.82 and 1,012,331.32

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Solution

The fourth proportional to 1,685,780.51, 2,529,307.82 and 1,012,331.32 is: 1,518,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,780.51 : 2,529,307.82 = 1,012,331.32 : x
  2. Step 2: Convert to fraction form
    1,685,780.51/2,529,307.82 = 1,012,331.32/x
  3. Step 3: Cross multiply
    1,685,780.51x = 2,529,307.82 × 1,012,331.32
  4. Step 4: Simplify right side
    1,685,780.51x = 2,560,497,520,314.48
  5. Step 5: Solve for x
    x = 2,560,497,520,314.48/1,685,780.51
  6. Step 6: Final answer
    x = 1,518,879.54

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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.