Home / 680,518.95-1,020,729.22-325,437.63

Finding the Fourth Proportional to 680,518.95, 1,020,729.22 and 325,437.63

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Solution

The fourth proportional to 680,518.95, 1,020,729.22 and 325,437.63 is: 488,132.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,518.95 : 1,020,729.22 = 325,437.63 : x
  2. Step 2: Convert to fraction form
    680,518.95/1,020,729.22 = 325,437.63/x
  3. Step 3: Cross multiply
    680,518.95x = 1,020,729.22 × 325,437.63
  4. Step 4: Simplify right side
    680,518.95x = 332,183,697,414.96
  5. Step 5: Solve for x
    x = 332,183,697,414.96/680,518.95
  6. Step 6: Final answer
    x = 488,132.91

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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.