Finding the Fourth Proportional to 621,118.16, 857,173.44 and 349,271.64
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Solution
The fourth proportional to 621,118.16, 857,173.44 and 349,271.64 is: 482,011.95
Step by Step Solution
- Step 1: Write the proportion equation
621,118.16 : 857,173.44 = 349,271.64 : x - Step 2: Convert to fraction form
621,118.16/857,173.44 = 349,271.64/x - Step 3: Cross multiply
621,118.16x = 857,173.44 × 349,271.64 - Step 4: Simplify right side
621,118.16x = 299,386,373,153.24 - Step 5: Solve for x
x = 299,386,373,153.24/621,118.16 - Step 6: Final answer
x = 482,011.95
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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.