Home / 419,976.60-630,260.14-379,823.28

Finding the Fourth Proportional to 419,976.60, 630,260.14 and 379,823.28

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Solution

The fourth proportional to 419,976.60, 630,260.14 and 379,823.28 is: 570,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,976.60 : 630,260.14 = 379,823.28 : x
  2. Step 2: Convert to fraction form
    419,976.60/630,260.14 = 379,823.28/x
  3. Step 3: Cross multiply
    419,976.60x = 630,260.14 × 379,823.28
  4. Step 4: Simplify right side
    419,976.60x = 239,387,473,628.06
  5. Step 5: Solve for x
    x = 239,387,473,628.06/419,976.60
  6. Step 6: Final answer
    x = 570,001.93

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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.