Finding the Fourth Proportional to 419,407.08, 578,763.84 and 228,420.96
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Solution
The fourth proportional to 419,407.08, 578,763.84 and 228,420.96 is: 315,211.16
Step by Step Solution
- Step 1: Write the proportion equation
419,407.08 : 578,763.84 = 228,420.96 : x - Step 2: Convert to fraction form
419,407.08/578,763.84 = 228,420.96/x - Step 3: Cross multiply
419,407.08x = 578,763.84 × 228,420.96 - Step 4: Simplify right side
419,407.08x = 132,201,791,946.09 - Step 5: Solve for x
x = 132,201,791,946.09/419,407.08 - Step 6: Final answer
x = 315,211.16
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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.