Home / 445,544.24-615,075-290,565.68

Finding the Fourth Proportional to 445,544.24, 615,075 and 290,565.68

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Solution

The fourth proportional to 445,544.24, 615,075 and 290,565.68 is: 401,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,544.24 : 615,075 = 290,565.68 : x
  2. Step 2: Convert to fraction form
    445,544.24/615,075 = 290,565.68/x
  3. Step 3: Cross multiply
    445,544.24x = 615,075 × 290,565.68
  4. Step 4: Simplify right side
    445,544.24x = 178,719,685,626
  5. Step 5: Solve for x
    x = 178,719,685,626/445,544.24
  6. Step 6: Final answer
    x = 401,126.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.