Finding the Fourth Proportional to 621,153.10, 932,276.40 and 368,117.20
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Solution
The fourth proportional to 621,153.10, 932,276.40 and 368,117.20 is: 552,499.82
Step by Step Solution
- Step 1: Write the proportion equation
621,153.10 : 932,276.40 = 368,117.20 : x - Step 2: Convert to fraction form
621,153.10/932,276.40 = 368,117.20/x - Step 3: Cross multiply
621,153.10x = 932,276.40 × 368,117.20 - Step 4: Simplify right side
621,153.10x = 343,186,977,994.08 - Step 5: Solve for x
x = 343,186,977,994.08/621,153.10 - Step 6: Final answer
x = 552,499.82
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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.