Home / 876,619.60-1,314,929.40-455,840.80

Finding the Fourth Proportional to 876,619.60, 1,314,929.40 and 455,840.80

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Solution

The fourth proportional to 876,619.60, 1,314,929.40 and 455,840.80 is: 683,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,619.60 : 1,314,929.40 = 455,840.80 : x
  2. Step 2: Convert to fraction form
    876,619.60/1,314,929.40 = 455,840.80/x
  3. Step 3: Cross multiply
    876,619.60x = 1,314,929.40 × 455,840.80
  4. Step 4: Simplify right side
    876,619.60x = 599,398,469,639.52
  5. Step 5: Solve for x
    x = 599,398,469,639.52/876,619.60
  6. Step 6: Final answer
    x = 683,761.20

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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.