Home / 621,061.34-930,927.60-321,240.06

Finding the Fourth Proportional to 621,061.34, 930,927.60 and 321,240.06

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Solution

The fourth proportional to 621,061.34, 930,927.60 and 321,240.06 is: 481,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,061.34 : 930,927.60 = 321,240.06 : x
  2. Step 2: Convert to fraction form
    621,061.34/930,927.60 = 321,240.06/x
  3. Step 3: Cross multiply
    621,061.34x = 930,927.60 × 321,240.06
  4. Step 4: Simplify right side
    621,061.34x = 299,051,238,079.66
  5. Step 5: Solve for x
    x = 299,051,238,079.66/621,061.34
  6. Step 6: Final answer
    x = 481,516.43

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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.