Finding the Fourth Proportional to 665,243.76, 918,036.18 and 359,319.99
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Solution
The fourth proportional to 665,243.76, 918,036.18 and 359,319.99 is: 495,861.47
Step by Step Solution
- Step 1: Write the proportion equation
665,243.76 : 918,036.18 = 359,319.99 : x - Step 2: Convert to fraction form
665,243.76/918,036.18 = 359,319.99/x - Step 3: Cross multiply
665,243.76x = 918,036.18 × 359,319.99 - Step 4: Simplify right side
665,243.76x = 329,868,751,017.24 - Step 5: Solve for x
x = 329,868,751,017.24/665,243.76 - Step 6: Final answer
x = 495,861.47
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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.