Finding the Fourth Proportional to 611,536.90, 917,305.35 and 328,101.70
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Solution
The fourth proportional to 611,536.90, 917,305.35 and 328,101.70 is: 492,152.55
Step by Step Solution
- Step 1: Write the proportion equation
611,536.90 : 917,305.35 = 328,101.70 : x - Step 2: Convert to fraction form
611,536.90/917,305.35 = 328,101.70/x - Step 3: Cross multiply
611,536.90x = 917,305.35 × 328,101.70 - Step 4: Simplify right side
611,536.90x = 300,969,444,754.10 - Step 5: Solve for x
x = 300,969,444,754.10/611,536.90 - Step 6: Final answer
x = 492,152.55
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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.