Home / 889,583.12-1,334,390.67-321,006.86

Finding the Fourth Proportional to 889,583.12, 1,334,390.67 and 321,006.86

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Solution

The fourth proportional to 889,583.12, 1,334,390.67 and 321,006.86 is: 481,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,583.12 : 1,334,390.67 = 321,006.86 : x
  2. Step 2: Convert to fraction form
    889,583.12/1,334,390.67 = 321,006.86/x
  3. Step 3: Cross multiply
    889,583.12x = 1,334,390.67 × 321,006.86
  4. Step 4: Simplify right side
    889,583.12x = 428,348,552,318.04
  5. Step 5: Solve for x
    x = 428,348,552,318.04/889,583.12
  6. Step 6: Final answer
    x = 481,516.06

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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.