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Finding the Fourth Proportional to 869,063.60, 1,303,206.60 and 336,407.60

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Solution

The fourth proportional to 869,063.60, 1,303,206.60 and 336,407.60 is: 504,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,063.60 : 1,303,206.60 = 336,407.60 : x
  2. Step 2: Convert to fraction form
    869,063.60/1,303,206.60 = 336,407.60/x
  3. Step 3: Cross multiply
    869,063.60x = 1,303,206.60 × 336,407.60
  4. Step 4: Simplify right side
    869,063.60x = 438,408,604,610.16
  5. Step 5: Solve for x
    x = 438,408,604,610.16/869,063.60
  6. Step 6: Final answer
    x = 504,460.90

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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.