Home / 876,840.30-1,314,932.40-308,001.60

Finding the Fourth Proportional to 876,840.30, 1,314,932.40 and 308,001.60

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Solution

The fourth proportional to 876,840.30, 1,314,932.40 and 308,001.60 is: 461,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,840.30 : 1,314,932.40 = 308,001.60 : x
  2. Step 2: Convert to fraction form
    876,840.30/1,314,932.40 = 308,001.60/x
  3. Step 3: Cross multiply
    876,840.30x = 1,314,932.40 × 308,001.60
  4. Step 4: Simplify right side
    876,840.30x = 405,001,283,091.84
  5. Step 5: Solve for x
    x = 405,001,283,091.84/876,840.30
  6. Step 6: Final answer
    x = 461,887.17

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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.