Home / 1,328,670-1,992,986.28-618,300.72

Finding the Fourth Proportional to 1,328,670, 1,992,986.28 and 618,300.72

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Solution

The fourth proportional to 1,328,670, 1,992,986.28 and 618,300.72 is: 927,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,670 : 1,992,986.28 = 618,300.72 : x
  2. Step 2: Convert to fraction form
    1,328,670/1,992,986.28 = 618,300.72/x
  3. Step 3: Cross multiply
    1,328,670x = 1,992,986.28 × 618,300.72
  4. Step 4: Simplify right side
    1,328,670x = 1,232,264,851,874.12
  5. Step 5: Solve for x
    x = 1,232,264,851,874.12/1,328,670
  6. Step 6: Final answer
    x = 927,442.37

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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.