Finding the Fourth Proportional to 645,276.78, 968,112.09 and 329,955.18
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Solution
The fourth proportional to 645,276.78, 968,112.09 and 329,955.18 is: 495,033.46
Step by Step Solution
- Step 1: Write the proportion equation
645,276.78 : 968,112.09 = 329,955.18 : x - Step 2: Convert to fraction form
645,276.78/968,112.09 = 329,955.18/x - Step 3: Cross multiply
645,276.78x = 968,112.09 × 329,955.18 - Step 4: Simplify right side
645,276.78x = 319,433,598,916.13 - Step 5: Solve for x
x = 319,433,598,916.13/645,276.78 - Step 6: Final answer
x = 495,033.46
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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.