Home / 1,191,971.55-1,788,012.42-393,322.89

Finding the Fourth Proportional to 1,191,971.55, 1,788,012.42 and 393,322.89

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Solution

The fourth proportional to 1,191,971.55, 1,788,012.42 and 393,322.89 is: 590,002.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,971.55 : 1,788,012.42 = 393,322.89 : x
  2. Step 2: Convert to fraction form
    1,191,971.55/1,788,012.42 = 393,322.89/x
  3. Step 3: Cross multiply
    1,191,971.55x = 1,788,012.42 × 393,322.89
  4. Step 4: Simplify right side
    1,191,971.55x = 703,266,212,390.29
  5. Step 5: Solve for x
    x = 703,266,212,390.29/1,191,971.55
  6. Step 6: Final answer
    x = 590,002.52

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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.