Home / 853,488.36-1,280,423.23-321,014.00

Finding the Fourth Proportional to 853,488.36, 1,280,423.23 and 321,014.00

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Solution

The fourth proportional to 853,488.36, 1,280,423.23 and 321,014.00 is: 481,592.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,488.36 : 1,280,423.23 = 321,014.00 : x
  2. Step 2: Convert to fraction form
    853,488.36/1,280,423.23 = 321,014.00/x
  3. Step 3: Cross multiply
    853,488.36x = 1,280,423.23 × 321,014.00
  4. Step 4: Simplify right side
    853,488.36x = 411,033,785,153.74
  5. Step 5: Solve for x
    x = 411,033,785,153.74/853,488.36
  6. Step 6: Final answer
    x = 481,592.73

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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.