Home / 926,620.36-1,390,829.33-447,185.61

Finding the Fourth Proportional to 926,620.36, 1,390,829.33 and 447,185.61

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Solution

The fourth proportional to 926,620.36, 1,390,829.33 and 447,185.61 is: 671,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,620.36 : 1,390,829.33 = 447,185.61 : x
  2. Step 2: Convert to fraction form
    926,620.36/1,390,829.33 = 447,185.61/x
  3. Step 3: Cross multiply
    926,620.36x = 1,390,829.33 × 447,185.61
  4. Step 4: Simplify right side
    926,620.36x = 621,958,863,459.91
  5. Step 5: Solve for x
    x = 621,958,863,459.91/926,620.36
  6. Step 6: Final answer
    x = 671,212.17

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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.