Finding the Fourth Proportional to 545,707.55, 753,099.12 and 303,990.08
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Solution
The fourth proportional to 545,707.55, 753,099.12 and 303,990.08 is: 419,518.95
Step by Step Solution
- Step 1: Write the proportion equation
545,707.55 : 753,099.12 = 303,990.08 : x - Step 2: Convert to fraction form
545,707.55/753,099.12 = 303,990.08/x - Step 3: Cross multiply
545,707.55x = 753,099.12 × 303,990.08 - Step 4: Simplify right side
545,707.55x = 228,934,657,971.23 - Step 5: Solve for x
x = 228,934,657,971.23/545,707.55 - Step 6: Final answer
x = 419,518.95
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1.5x scale
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.