Home / 890,990.56-1,229,622.96-488,582.56

Finding the Fourth Proportional to 890,990.56, 1,229,622.96 and 488,582.56

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Solution

The fourth proportional to 890,990.56, 1,229,622.96 and 488,582.56 is: 674,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,990.56 : 1,229,622.96 = 488,582.56 : x
  2. Step 2: Convert to fraction form
    890,990.56/1,229,622.96 = 488,582.56/x
  3. Step 3: Cross multiply
    890,990.56x = 1,229,622.96 × 488,582.56
  4. Step 4: Simplify right side
    890,990.56x = 600,772,333,631.58
  5. Step 5: Solve for x
    x = 600,772,333,631.58/890,990.56
  6. Step 6: Final answer
    x = 674,274.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.