Home / 1,278,862.34-1,918,075.44-425,837.24

Finding the Fourth Proportional to 1,278,862.34, 1,918,075.44 and 425,837.24

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Solution

The fourth proportional to 1,278,862.34, 1,918,075.44 and 425,837.24 is: 638,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,862.34 : 1,918,075.44 = 425,837.24 : x
  2. Step 2: Convert to fraction form
    1,278,862.34/1,918,075.44 = 425,837.24/x
  3. Step 3: Cross multiply
    1,278,862.34x = 1,918,075.44 × 425,837.24
  4. Step 4: Simplify right side
    1,278,862.34x = 816,787,941,891.01
  5. Step 5: Solve for x
    x = 816,787,941,891.01/1,278,862.34
  6. Step 6: Final answer
    x = 638,683.24

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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.