Home / 1,294,857.09-1,788,031.08-812,251.80

Finding the Fourth Proportional to 1,294,857.09, 1,788,031.08 and 812,251.80

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Solution

The fourth proportional to 1,294,857.09, 1,788,031.08 and 812,251.80 is: 1,121,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,857.09 : 1,788,031.08 = 812,251.80 : x
  2. Step 2: Convert to fraction form
    1,294,857.09/1,788,031.08 = 812,251.80/x
  3. Step 3: Cross multiply
    1,294,857.09x = 1,788,031.08 × 812,251.80
  4. Step 4: Simplify right side
    1,294,857.09x = 1,452,331,463,185.94
  5. Step 5: Solve for x
    x = 1,452,331,463,185.94/1,294,857.09
  6. Step 6: Final answer
    x = 1,121,615.25

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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.