Home / 1,298,000.40-1,947,000.60-850,102.80

Finding the Fourth Proportional to 1,298,000.40, 1,947,000.60 and 850,102.80

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Solution

The fourth proportional to 1,298,000.40, 1,947,000.60 and 850,102.80 is: 1,275,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,000.40 : 1,947,000.60 = 850,102.80 : x
  2. Step 2: Convert to fraction form
    1,298,000.40/1,947,000.60 = 850,102.80/x
  3. Step 3: Cross multiply
    1,298,000.40x = 1,947,000.60 × 850,102.80
  4. Step 4: Simplify right side
    1,298,000.40x = 1,655,150,661,661.68
  5. Step 5: Solve for x
    x = 1,655,150,661,661.68/1,298,000.40
  6. Step 6: Final answer
    x = 1,275,154.20

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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.