Home / 621,269.51-930,686.38-321,946.44

Finding the Fourth Proportional to 621,269.51, 930,686.38 and 321,946.44

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Solution

The fourth proportional to 621,269.51, 930,686.38 and 321,946.44 is: 482,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,269.51 : 930,686.38 = 321,946.44 : x
  2. Step 2: Convert to fraction form
    621,269.51/930,686.38 = 321,946.44/x
  3. Step 3: Cross multiply
    621,269.51x = 930,686.38 × 321,946.44
  4. Step 4: Simplify right side
    621,269.51x = 299,631,167,199.92
  5. Step 5: Solve for x
    x = 299,631,167,199.92/621,269.51
  6. Step 6: Final answer
    x = 482,288.54

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Double scale
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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.