Home / 1,219,531.29-1,820,596.67-1,138,486.33

Finding the Fourth Proportional to 1,219,531.29, 1,820,596.67 and 1,138,486.33

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Solution

The fourth proportional to 1,219,531.29, 1,820,596.67 and 1,138,486.33 is: 1,699,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,531.29 : 1,820,596.67 = 1,138,486.33 : x
  2. Step 2: Convert to fraction form
    1,219,531.29/1,820,596.67 = 1,138,486.33/x
  3. Step 3: Cross multiply
    1,219,531.29x = 1,820,596.67 × 1,138,486.33
  4. Step 4: Simplify right side
    1,219,531.29x = 2,072,724,421,238.52
  5. Step 5: Solve for x
    x = 2,072,724,421,238.52/1,219,531.29
  6. Step 6: Final answer
    x = 1,699,607.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.