Finding the Fourth Proportional to 921,283.29, 1,271,376 and 534,328.07
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Solution
The fourth proportional to 921,283.29, 1,271,376 and 534,328.07 is: 737,375.66
Step by Step Solution
- Step 1: Write the proportion equation
921,283.29 : 1,271,376 = 534,328.07 : x - Step 2: Convert to fraction form
921,283.29/1,271,376 = 534,328.07/x - Step 3: Cross multiply
921,283.29x = 1,271,376 × 534,328.07 - Step 4: Simplify right side
921,283.29x = 679,331,877,967.44 - Step 5: Solve for x
x = 679,331,877,967.44/921,283.29 - Step 6: Final answer
x = 737,375.66
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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.