Home / 1,021,112.58-1,531,471.23-389,876.34

Finding the Fourth Proportional to 1,021,112.58, 1,531,471.23 and 389,876.34

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Solution

The fourth proportional to 1,021,112.58, 1,531,471.23 and 389,876.34 is: 584,739.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,112.58 : 1,531,471.23 = 389,876.34 : x
  2. Step 2: Convert to fraction form
    1,021,112.58/1,531,471.23 = 389,876.34/x
  3. Step 3: Cross multiply
    1,021,112.58x = 1,531,471.23 × 389,876.34
  4. Step 4: Simplify right side
    1,021,112.58x = 597,084,397,967.70
  5. Step 5: Solve for x
    x = 597,084,397,967.70/1,021,112.58
  6. Step 6: Final answer
    x = 584,739.05

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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.