Home / 876,768.30-1,314,824.40-307,929.60

Finding the Fourth Proportional to 876,768.30, 1,314,824.40 and 307,929.60

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Solution

The fourth proportional to 876,768.30, 1,314,824.40 and 307,929.60 is: 461,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,768.30 : 1,314,824.40 = 307,929.60 : x
  2. Step 2: Convert to fraction form
    876,768.30/1,314,824.40 = 307,929.60/x
  3. Step 3: Cross multiply
    876,768.30x = 1,314,824.40 × 307,929.60
  4. Step 4: Simplify right side
    876,768.30x = 404,873,351,562.24
  5. Step 5: Solve for x
    x = 404,873,351,562.24/876,768.30
  6. Step 6: Final answer
    x = 461,779.19

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1.5x scale

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.