Finding the Fourth Proportional to 847,602.63, 1,271,264.21 and 278,991.13
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Solution
The fourth proportional to 847,602.63, 1,271,264.21 and 278,991.13 is: 418,440.70
Step by Step Solution
- Step 1: Write the proportion equation
847,602.63 : 1,271,264.21 = 278,991.13 : x - Step 2: Convert to fraction form
847,602.63/1,271,264.21 = 278,991.13/x - Step 3: Cross multiply
847,602.63x = 1,271,264.21 × 278,991.13 - Step 4: Simplify right side
847,602.63x = 354,671,438,476.46 - Step 5: Solve for x
x = 354,671,438,476.46/847,602.63 - Step 6: Final answer
x = 418,440.70
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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.