Home / 1,447,542.80-2,171,314.20-999,645.20

Finding the Fourth Proportional to 1,447,542.80, 2,171,314.20 and 999,645.20

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Solution

The fourth proportional to 1,447,542.80, 2,171,314.20 and 999,645.20 is: 1,499,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,542.80 : 2,171,314.20 = 999,645.20 : x
  2. Step 2: Convert to fraction form
    1,447,542.80/2,171,314.20 = 999,645.20/x
  3. Step 3: Cross multiply
    1,447,542.80x = 2,171,314.20 × 999,645.20
  4. Step 4: Simplify right side
    1,447,542.80x = 2,170,543,817,721.84
  5. Step 5: Solve for x
    x = 2,170,543,817,721.84/1,447,542.80
  6. Step 6: Final answer
    x = 1,499,467.80

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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.