Home / 1,679,819.40-2,519,729.10-971,231.40

Finding the Fourth Proportional to 1,679,819.40, 2,519,729.10 and 971,231.40

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Solution

The fourth proportional to 1,679,819.40, 2,519,729.10 and 971,231.40 is: 1,456,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,819.40 : 2,519,729.10 = 971,231.40 : x
  2. Step 2: Convert to fraction form
    1,679,819.40/2,519,729.10 = 971,231.40/x
  3. Step 3: Cross multiply
    1,679,819.40x = 2,519,729.10 × 971,231.40
  4. Step 4: Simplify right side
    1,679,819.40x = 2,447,240,021,413.74
  5. Step 5: Solve for x
    x = 2,447,240,021,413.74/1,679,819.40
  6. Step 6: Final answer
    x = 1,456,847.10

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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.