Home / 770,619.60-1,155,929.40-646,203.60

Finding the Fourth Proportional to 770,619.60, 1,155,929.40 and 646,203.60

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Solution

The fourth proportional to 770,619.60, 1,155,929.40 and 646,203.60 is: 969,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,619.60 : 1,155,929.40 = 646,203.60 : x
  2. Step 2: Convert to fraction form
    770,619.60/1,155,929.40 = 646,203.60/x
  3. Step 3: Cross multiply
    770,619.60x = 1,155,929.40 × 646,203.60
  4. Step 4: Simplify right side
    770,619.60x = 746,965,739,625.84
  5. Step 5: Solve for x
    x = 746,965,739,625.84/770,619.60
  6. Step 6: Final answer
    x = 969,305.40

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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.