Finding the Fourth Proportional to 722,154.24, 996,492.38 and 399,783.60
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Solution
The fourth proportional to 722,154.24, 996,492.38 and 399,783.60 is: 551,656.82
Step by Step Solution
- Step 1: Write the proportion equation
722,154.24 : 996,492.38 = 399,783.60 : x - Step 2: Convert to fraction form
722,154.24/996,492.38 = 399,783.60/x - Step 3: Cross multiply
722,154.24x = 996,492.38 × 399,783.60 - Step 4: Simplify right side
722,154.24x = 398,381,309,050.05 - Step 5: Solve for x
x = 398,381,309,050.05/722,154.24 - Step 6: Final answer
x = 551,656.82
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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.