Home / 1,320,703.68-1,980,958.62-421,904.04

Finding the Fourth Proportional to 1,320,703.68, 1,980,958.62 and 421,904.04

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Solution

The fourth proportional to 1,320,703.68, 1,980,958.62 and 421,904.04 is: 632,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,703.68 : 1,980,958.62 = 421,904.04 : x
  2. Step 2: Convert to fraction form
    1,320,703.68/1,980,958.62 = 421,904.04/x
  3. Step 3: Cross multiply
    1,320,703.68x = 1,980,958.62 × 421,904.04
  4. Step 4: Simplify right side
    1,320,703.68x = 835,774,444,850.83
  5. Step 5: Solve for x
    x = 835,774,444,850.83/1,320,703.68
  6. Step 6: Final answer
    x = 632,825.10

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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.