Home / 1,430,144.40-1,973,661.30-818,489.16

Finding the Fourth Proportional to 1,430,144.40, 1,973,661.30 and 818,489.16

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Solution

The fourth proportional to 1,430,144.40, 1,973,661.30 and 818,489.16 is: 1,129,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,144.40 : 1,973,661.30 = 818,489.16 : x
  2. Step 2: Convert to fraction form
    1,430,144.40/1,973,661.30 = 818,489.16/x
  3. Step 3: Cross multiply
    1,430,144.40x = 1,973,661.30 × 818,489.16
  4. Step 4: Simplify right side
    1,430,144.40x = 1,615,420,379,561.51
  5. Step 5: Solve for x
    x = 1,615,420,379,561.51/1,430,144.40
  6. Step 6: Final answer
    x = 1,129,550.54

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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.