Home / 612,629.68-845,429.44-340,691.60

Finding the Fourth Proportional to 612,629.68, 845,429.44 and 340,691.60

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Solution

The fourth proportional to 612,629.68, 845,429.44 and 340,691.60 is: 470,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,629.68 : 845,429.44 = 340,691.60 : x
  2. Step 2: Convert to fraction form
    612,629.68/845,429.44 = 340,691.60/x
  3. Step 3: Cross multiply
    612,629.68x = 845,429.44 × 340,691.60
  4. Step 4: Simplify right side
    612,629.68x = 288,030,708,600.70
  5. Step 5: Solve for x
    x = 288,030,708,600.70/612,629.68
  6. Step 6: Final answer
    x = 470,154.68

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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.