Home / 680,410.16-1,019,448.84-480,372.56

Finding the Fourth Proportional to 680,410.16, 1,019,448.84 and 480,372.56

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Solution

The fourth proportional to 680,410.16, 1,019,448.84 and 480,372.56 is: 719,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,410.16 : 1,019,448.84 = 480,372.56 : x
  2. Step 2: Convert to fraction form
    680,410.16/1,019,448.84 = 480,372.56/x
  3. Step 3: Cross multiply
    680,410.16x = 1,019,448.84 × 480,372.56
  4. Step 4: Simplify right side
    680,410.16x = 489,715,249,059.83
  5. Step 5: Solve for x
    x = 489,715,249,059.83/680,410.16
  6. Step 6: Final answer
    x = 719,735.36

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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.