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Finding the Fourth Proportional to 624,580.06, 936,729.93 and 287,296.78

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Solution

The fourth proportional to 624,580.06, 936,729.93 and 287,296.78 is: 430,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,580.06 : 936,729.93 = 287,296.78 : x
  2. Step 2: Convert to fraction form
    624,580.06/936,729.93 = 287,296.78/x
  3. Step 3: Cross multiply
    624,580.06x = 936,729.93 × 287,296.78
  4. Step 4: Simplify right side
    624,580.06x = 269,119,492,618.63
  5. Step 5: Solve for x
    x = 269,119,492,618.63/624,580.06
  6. Step 6: Final answer
    x = 430,880.70

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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.