Home / 803,423.20-1,205,912.40-488,495.20

Finding the Fourth Proportional to 803,423.20, 1,205,912.40 and 488,495.20

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Solution

The fourth proportional to 803,423.20, 1,205,912.40 and 488,495.20 is: 733,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,423.20 : 1,205,912.40 = 488,495.20 : x
  2. Step 2: Convert to fraction form
    803,423.20/1,205,912.40 = 488,495.20/x
  3. Step 3: Cross multiply
    803,423.20x = 1,205,912.40 × 488,495.20
  4. Step 4: Simplify right side
    803,423.20x = 589,082,419,020.48
  5. Step 5: Solve for x
    x = 589,082,419,020.48/803,423.20
  6. Step 6: Final answer
    x = 733,215.59

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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.