Home / 1,535,985.40-2,120,456.79-1,122,057.37

Finding the Fourth Proportional to 1,535,985.40, 2,120,456.79 and 1,122,057.37

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Solution

The fourth proportional to 1,535,985.40, 2,120,456.79 and 1,122,057.37 is: 1,549,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,985.40 : 2,120,456.79 = 1,122,057.37 : x
  2. Step 2: Convert to fraction form
    1,535,985.40/2,120,456.79 = 1,122,057.37/x
  3. Step 3: Cross multiply
    1,535,985.40x = 2,120,456.79 × 1,122,057.37
  4. Step 4: Simplify right side
    1,535,985.40x = 2,379,274,168,986.04
  5. Step 5: Solve for x
    x = 2,379,274,168,986.04/1,535,985.40
  6. Step 6: Final answer
    x = 1,549,021.34

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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.