Home / 1,186,231.77-1,636,999.58-642,367.55

Finding the Fourth Proportional to 1,186,231.77, 1,636,999.58 and 642,367.55

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Solution

The fourth proportional to 1,186,231.77, 1,636,999.58 and 642,367.55 is: 886,467.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,231.77 : 1,636,999.58 = 642,367.55 : x
  2. Step 2: Convert to fraction form
    1,186,231.77/1,636,999.58 = 642,367.55/x
  3. Step 3: Cross multiply
    1,186,231.77x = 1,636,999.58 × 642,367.55
  4. Step 4: Simplify right side
    1,186,231.77x = 1,051,555,409,555.63
  5. Step 5: Solve for x
    x = 1,051,555,409,555.63/1,186,231.77
  6. Step 6: Final answer
    x = 886,467.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.