Home / 1,277,541.09-1,762,561.47-818,908.50

Finding the Fourth Proportional to 1,277,541.09, 1,762,561.47 and 818,908.50

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Solution

The fourth proportional to 1,277,541.09, 1,762,561.47 and 818,908.50 is: 1,129,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,541.09 : 1,762,561.47 = 818,908.50 : x
  2. Step 2: Convert to fraction form
    1,277,541.09/1,762,561.47 = 818,908.50/x
  3. Step 3: Cross multiply
    1,277,541.09x = 1,762,561.47 × 818,908.50
  4. Step 4: Simplify right side
    1,277,541.09x = 1,443,376,569,555.50
  5. Step 5: Solve for x
    x = 1,443,376,569,555.50/1,277,541.09
  6. Step 6: Final answer
    x = 1,129,808.33

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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.