Home / 1,277,538.60-1,762,558.04-818,906

Finding the Fourth Proportional to 1,277,538.60, 1,762,558.04 and 818,906

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Solution

The fourth proportional to 1,277,538.60, 1,762,558.04 and 818,906 is: 1,129,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,538.60 : 1,762,558.04 = 818,906 : x
  2. Step 2: Convert to fraction form
    1,277,538.60/1,762,558.04 = 818,906/x
  3. Step 3: Cross multiply
    1,277,538.60x = 1,762,558.04 × 818,906
  4. Step 4: Simplify right side
    1,277,538.60x = 1,443,369,354,304.24
  5. Step 5: Solve for x
    x = 1,443,369,354,304.24/1,277,538.60
  6. Step 6: Final answer
    x = 1,129,804.89

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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.