Home / 1,329,012-1,993,499.28-618,642.72

Finding the Fourth Proportional to 1,329,012, 1,993,499.28 and 618,642.72

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Solution

The fourth proportional to 1,329,012, 1,993,499.28 and 618,642.72 is: 927,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,012 : 1,993,499.28 = 618,642.72 : x
  2. Step 2: Convert to fraction form
    1,329,012/1,993,499.28 = 618,642.72/x
  3. Step 3: Cross multiply
    1,329,012x = 1,993,499.28 × 618,642.72
  4. Step 4: Simplify right side
    1,329,012x = 1,233,263,816,897.24
  5. Step 5: Solve for x
    x = 1,233,263,816,897.24/1,329,012
  6. Step 6: Final answer
    x = 927,955.37

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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.