Home / 1,075,720.64-1,613,204.82-317,360.78

Finding the Fourth Proportional to 1,075,720.64, 1,613,204.82 and 317,360.78

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Solution

The fourth proportional to 1,075,720.64, 1,613,204.82 and 317,360.78 is: 475,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,720.64 : 1,613,204.82 = 317,360.78 : x
  2. Step 2: Convert to fraction form
    1,075,720.64/1,613,204.82 = 317,360.78/x
  3. Step 3: Cross multiply
    1,075,720.64x = 1,613,204.82 × 317,360.78
  4. Step 4: Simplify right side
    1,075,720.64x = 511,967,939,974.96
  5. Step 5: Solve for x
    x = 511,967,939,974.96/1,075,720.64
  6. Step 6: Final answer
    x = 475,930.20

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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.