Finding the Fourth Proportional to 938,646.24, 1,407,981.12 and 620,832.48
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Solution
The fourth proportional to 938,646.24, 1,407,981.12 and 620,832.48 is: 931,256.50
Step by Step Solution
- Step 1: Write the proportion equation
938,646.24 : 1,407,981.12 = 620,832.48 : x - Step 2: Convert to fraction form
938,646.24/1,407,981.12 = 620,832.48/x - Step 3: Cross multiply
938,646.24x = 1,407,981.12 × 620,832.48 - Step 4: Simplify right side
938,646.24x = 874,120,410,522.78 - Step 5: Solve for x
x = 874,120,410,522.78/938,646.24 - Step 6: Final answer
x = 931,256.50
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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.