Home / 1,419,191.55-2,129,126.31-472,570.47

Finding the Fourth Proportional to 1,419,191.55, 2,129,126.31 and 472,570.47

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Solution

The fourth proportional to 1,419,191.55, 2,129,126.31 and 472,570.47 is: 708,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,191.55 : 2,129,126.31 = 472,570.47 : x
  2. Step 2: Convert to fraction form
    1,419,191.55/2,129,126.31 = 472,570.47/x
  3. Step 3: Cross multiply
    1,419,191.55x = 2,129,126.31 × 472,570.47
  4. Step 4: Simplify right side
    1,419,191.55x = 1,006,162,221,006.07
  5. Step 5: Solve for x
    x = 1,006,162,221,006.07/1,419,191.55
  6. Step 6: Final answer
    x = 708,968.58

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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.