Home / 1,186,093.72-1,636,809.15-642,229.48

Finding the Fourth Proportional to 1,186,093.72, 1,636,809.15 and 642,229.48

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Solution

The fourth proportional to 1,186,093.72, 1,636,809.15 and 642,229.48 is: 886,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,093.72 : 1,636,809.15 = 642,229.48 : x
  2. Step 2: Convert to fraction form
    1,186,093.72/1,636,809.15 = 642,229.48/x
  3. Step 3: Cross multiply
    1,186,093.72x = 1,636,809.15 × 642,229.48
  4. Step 4: Simplify right side
    1,186,093.72x = 1,051,207,089,263.74
  5. Step 5: Solve for x
    x = 1,051,207,089,263.74/1,186,093.72
  6. Step 6: Final answer
    x = 886,276.58

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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.