Home / 483,422.07-721,584.63-447,795.84

Finding the Fourth Proportional to 483,422.07, 721,584.63 and 447,795.84

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Solution

The fourth proportional to 483,422.07, 721,584.63 and 447,795.84 is: 668,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,422.07 : 721,584.63 = 447,795.84 : x
  2. Step 2: Convert to fraction form
    483,422.07/721,584.63 = 447,795.84/x
  3. Step 3: Cross multiply
    483,422.07x = 721,584.63 × 447,795.84
  4. Step 4: Simplify right side
    483,422.07x = 323,122,596,968.46
  5. Step 5: Solve for x
    x = 323,122,596,968.46/483,422.07
  6. Step 6: Final answer
    x = 668,406.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.