Home / 355,429.19-530,873.96-321,642.83

Finding the Fourth Proportional to 355,429.19, 530,873.96 and 321,642.83

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Solution

The fourth proportional to 355,429.19, 530,873.96 and 321,642.83 is: 480,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,429.19 : 530,873.96 = 321,642.83 : x
  2. Step 2: Convert to fraction form
    355,429.19/530,873.96 = 321,642.83/x
  3. Step 3: Cross multiply
    355,429.19x = 530,873.96 × 321,642.83
  4. Step 4: Simplify right side
    355,429.19x = 170,751,802,867.71
  5. Step 5: Solve for x
    x = 170,751,802,867.71/355,429.19
  6. Step 6: Final answer
    x = 480,410.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.