Home / 1,190,404.69-1,643,229.57-828,038.84

Finding the Fourth Proportional to 1,190,404.69, 1,643,229.57 and 828,038.84

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Solution

The fourth proportional to 1,190,404.69, 1,643,229.57 and 828,038.84 is: 1,143,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,404.69 : 1,643,229.57 = 828,038.84 : x
  2. Step 2: Convert to fraction form
    1,190,404.69/1,643,229.57 = 828,038.84/x
  3. Step 3: Cross multiply
    1,190,404.69x = 1,643,229.57 × 828,038.84
  4. Step 4: Simplify right side
    1,190,404.69x = 1,360,657,906,996.50
  5. Step 5: Solve for x
    x = 1,360,657,906,996.50/1,190,404.69
  6. Step 6: Final answer
    x = 1,143,021.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.