Home / 1,205,021.40-1,662,929.39-688,786.33

Finding the Fourth Proportional to 1,205,021.40, 1,662,929.39 and 688,786.33

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Solution

The fourth proportional to 1,205,021.40, 1,662,929.39 and 688,786.33 is: 950,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,021.40 : 1,662,929.39 = 688,786.33 : x
  2. Step 2: Convert to fraction form
    1,205,021.40/1,662,929.39 = 688,786.33/x
  3. Step 3: Cross multiply
    1,205,021.40x = 1,662,929.39 × 688,786.33
  4. Step 4: Simplify right side
    1,205,021.40x = 1,145,403,031,587.24
  5. Step 5: Solve for x
    x = 1,145,403,031,587.24/1,205,021.40
  6. Step 6: Final answer
    x = 950,525.05

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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.