Home / 821,910.42-1,232,816.40-342,017.01

Finding the Fourth Proportional to 821,910.42, 1,232,816.40 and 342,017.01

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Solution

The fourth proportional to 821,910.42, 1,232,816.40 and 342,017.01 is: 513,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,910.42 : 1,232,816.40 = 342,017.01 : x
  2. Step 2: Convert to fraction form
    821,910.42/1,232,816.40 = 342,017.01/x
  3. Step 3: Cross multiply
    821,910.42x = 1,232,816.40 × 342,017.01
  4. Step 4: Simplify right side
    821,910.42x = 421,644,179,006.96
  5. Step 5: Solve for x
    x = 421,644,179,006.96/821,910.42
  6. Step 6: Final answer
    x = 513,005.03

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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.