Home / 926,620.09-1,390,828.91-447,185.30

Finding the Fourth Proportional to 926,620.09, 1,390,828.91 and 447,185.30

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Solution

The fourth proportional to 926,620.09, 1,390,828.91 and 447,185.30 is: 671,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,620.09 : 1,390,828.91 = 447,185.30 : x
  2. Step 2: Convert to fraction form
    926,620.09/1,390,828.91 = 447,185.30/x
  3. Step 3: Cross multiply
    926,620.09x = 1,390,828.91 × 447,185.30
  4. Step 4: Simplify right side
    926,620.09x = 621,958,234,176.95
  5. Step 5: Solve for x
    x = 621,958,234,176.95/926,620.09
  6. Step 6: Final answer
    x = 671,211.69

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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.