Home / 1,410.35-2,115.59-436.47

Finding the Fourth Proportional to 1,410.35, 2,115.59 and 436.47

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Solution

The fourth proportional to 1,410.35, 2,115.59 and 436.47 is: 654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.35 : 2,115.59 = 436.47 : x
  2. Step 2: Convert to fraction form
    1,410.35/2,115.59 = 436.47/x
  3. Step 3: Cross multiply
    1,410.35x = 2,115.59 × 436.47
  4. Step 4: Simplify right side
    1,410.35x = 923,389.38
  5. Step 5: Solve for x
    x = 923,389.38/1,410.35
  6. Step 6: Final answer
    x = 654.72

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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.