Home / 817,747.51-1,128,491.61-455,163.60

Finding the Fourth Proportional to 817,747.51, 1,128,491.61 and 455,163.60

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Solution

The fourth proportional to 817,747.51, 1,128,491.61 and 455,163.60 is: 628,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,747.51 : 1,128,491.61 = 455,163.60 : x
  2. Step 2: Convert to fraction form
    817,747.51/1,128,491.61 = 455,163.60/x
  3. Step 3: Cross multiply
    817,747.51x = 1,128,491.61 × 455,163.60
  4. Step 4: Simplify right side
    817,747.51x = 513,648,303,777.40
  5. Step 5: Solve for x
    x = 513,648,303,777.40/817,747.51
  6. Step 6: Final answer
    x = 628,125.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.