Home / 680,299.36-1,019,787.36-325,221.28

Finding the Fourth Proportional to 680,299.36, 1,019,787.36 and 325,221.28

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Solution

The fourth proportional to 680,299.36, 1,019,787.36 and 325,221.28 is: 487,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,299.36 : 1,019,787.36 = 325,221.28 : x
  2. Step 2: Convert to fraction form
    680,299.36/1,019,787.36 = 325,221.28/x
  3. Step 3: Cross multiply
    680,299.36x = 1,019,787.36 × 325,221.28
  4. Step 4: Simplify right side
    680,299.36x = 331,656,550,547.02
  5. Step 5: Solve for x
    x = 331,656,550,547.02/680,299.36
  6. Step 6: Final answer
    x = 487,515.60

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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.