Home / 680,525.23-1,020,787.89-281,176.29

Finding the Fourth Proportional to 680,525.23, 1,020,787.89 and 281,176.29

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Solution

The fourth proportional to 680,525.23, 1,020,787.89 and 281,176.29 is: 421,764.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,525.23 : 1,020,787.89 = 281,176.29 : x
  2. Step 2: Convert to fraction form
    680,525.23/1,020,787.89 = 281,176.29/x
  3. Step 3: Cross multiply
    680,525.23x = 1,020,787.89 × 281,176.29
  4. Step 4: Simplify right side
    680,525.23x = 287,021,354,339.10
  5. Step 5: Solve for x
    x = 287,021,354,339.10/680,525.23
  6. Step 6: Final answer
    x = 421,764.46

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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.