Home / 680,020.40-1,020,030.60-325,726.40

Finding the Fourth Proportional to 680,020.40, 1,020,030.60 and 325,726.40

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Solution

The fourth proportional to 680,020.40, 1,020,030.60 and 325,726.40 is: 488,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,020.40 : 1,020,030.60 = 325,726.40 : x
  2. Step 2: Convert to fraction form
    680,020.40/1,020,030.60 = 325,726.40/x
  3. Step 3: Cross multiply
    680,020.40x = 1,020,030.60 × 325,726.40
  4. Step 4: Simplify right side
    680,020.40x = 332,250,895,227.84
  5. Step 5: Solve for x
    x = 332,250,895,227.84/680,020.40
  6. Step 6: Final answer
    x = 488,589.60

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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.