Home / 628,896.63-943,492.56-208,172.50

Finding the Fourth Proportional to 628,896.63, 943,492.56 and 208,172.50

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Solution

The fourth proportional to 628,896.63, 943,492.56 and 208,172.50 is: 312,307.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,896.63 : 943,492.56 = 208,172.50 : x
  2. Step 2: Convert to fraction form
    628,896.63/943,492.56 = 208,172.50/x
  3. Step 3: Cross multiply
    628,896.63x = 943,492.56 × 208,172.50
  4. Step 4: Simplify right side
    628,896.63x = 196,409,204,946.60
  5. Step 5: Solve for x
    x = 196,409,204,946.60/628,896.63
  6. Step 6: Final answer
    x = 312,307.61

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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.