Finding the Fourth Proportional to 747,919.52, 1,032,128.88 and 408,388.08
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Solution
The fourth proportional to 747,919.52, 1,032,128.88 and 408,388.08 is: 563,575.52
Step by Step Solution
- Step 1: Write the proportion equation
747,919.52 : 1,032,128.88 = 408,388.08 : x - Step 2: Convert to fraction form
747,919.52/1,032,128.88 = 408,388.08/x - Step 3: Cross multiply
747,919.52x = 1,032,128.88 × 408,388.08 - Step 4: Simplify right side
747,919.52x = 421,509,131,615.75 - Step 5: Solve for x
x = 421,509,131,615.75/747,919.52 - Step 6: Final answer
x = 563,575.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.