Home / 1,292,021.12-1,782,989.16-719,196.62

Finding the Fourth Proportional to 1,292,021.12, 1,782,989.16 and 719,196.62

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Solution

The fourth proportional to 1,292,021.12, 1,782,989.16 and 719,196.62 is: 992,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,021.12 : 1,782,989.16 = 719,196.62 : x
  2. Step 2: Convert to fraction form
    1,292,021.12/1,782,989.16 = 719,196.62/x
  3. Step 3: Cross multiply
    1,292,021.12x = 1,782,989.16 × 719,196.62
  4. Step 4: Simplify right side
    1,292,021.12x = 1,282,319,764,857.71
  5. Step 5: Solve for x
    x = 1,282,319,764,857.71/1,292,021.12
  6. Step 6: Final answer
    x = 992,491.33

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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.