Finding the Fourth Proportional to 642,982.08, 887,271.84 and 371,061.28
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Solution
The fourth proportional to 642,982.08, 887,271.84 and 371,061.28 is: 512,039.50
Step by Step Solution
- Step 1: Write the proportion equation
642,982.08 : 887,271.84 = 371,061.28 : x - Step 2: Convert to fraction form
642,982.08/887,271.84 = 371,061.28/x - Step 3: Cross multiply
642,982.08x = 887,271.84 × 371,061.28 - Step 4: Simplify right side
642,982.08x = 329,232,224,658.36 - Step 5: Solve for x
x = 329,232,224,658.36/642,982.08 - Step 6: Final answer
x = 512,039.50
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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.