Home / 700,285.20-1,048,008.60-420,003.60

Finding the Fourth Proportional to 700,285.20, 1,048,008.60 and 420,003.60

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Solution

The fourth proportional to 700,285.20, 1,048,008.60 and 420,003.60 is: 628,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,285.20 : 1,048,008.60 = 420,003.60 : x
  2. Step 2: Convert to fraction form
    700,285.20/1,048,008.60 = 420,003.60/x
  3. Step 3: Cross multiply
    700,285.20x = 1,048,008.60 × 420,003.60
  4. Step 4: Simplify right side
    700,285.20x = 440,167,384,830.96
  5. Step 5: Solve for x
    x = 440,167,384,830.96/700,285.20
  6. Step 6: Final answer
    x = 628,554.46

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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.