Home / 1,383,938.10-2,075,907.15-978,030.90

Finding the Fourth Proportional to 1,383,938.10, 2,075,907.15 and 978,030.90

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Solution

The fourth proportional to 1,383,938.10, 2,075,907.15 and 978,030.90 is: 1,467,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,938.10 : 2,075,907.15 = 978,030.90 : x
  2. Step 2: Convert to fraction form
    1,383,938.10/2,075,907.15 = 978,030.90/x
  3. Step 3: Cross multiply
    1,383,938.10x = 2,075,907.15 × 978,030.90
  4. Step 4: Simplify right side
    1,383,938.10x = 2,030,301,338,230.94
  5. Step 5: Solve for x
    x = 2,030,301,338,230.94/1,383,938.10
  6. Step 6: Final answer
    x = 1,467,046.35

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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.