Home / 636,823.64-954,448.14-321,370.76

Finding the Fourth Proportional to 636,823.64, 954,448.14 and 321,370.76

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Solution

The fourth proportional to 636,823.64, 954,448.14 and 321,370.76 is: 481,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,823.64 : 954,448.14 = 321,370.76 : x
  2. Step 2: Convert to fraction form
    636,823.64/954,448.14 = 321,370.76/x
  3. Step 3: Cross multiply
    636,823.64x = 954,448.14 × 321,370.76
  4. Step 4: Simplify right side
    636,823.64x = 306,731,724,132.39
  5. Step 5: Solve for x
    x = 306,731,724,132.39/636,823.64
  6. Step 6: Final answer
    x = 481,658.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.