Home / 1,352,516.72-1,866,049.80-779,478.56

Finding the Fourth Proportional to 1,352,516.72, 1,866,049.80 and 779,478.56

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Solution

The fourth proportional to 1,352,516.72, 1,866,049.80 and 779,478.56 is: 1,075,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,516.72 : 1,866,049.80 = 779,478.56 : x
  2. Step 2: Convert to fraction form
    1,352,516.72/1,866,049.80 = 779,478.56/x
  3. Step 3: Cross multiply
    1,352,516.72x = 1,866,049.80 × 779,478.56
  4. Step 4: Simplify right side
    1,352,516.72x = 1,454,545,810,992.29
  5. Step 5: Solve for x
    x = 1,454,545,810,992.29/1,352,516.72
  6. Step 6: Final answer
    x = 1,075,436.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.