Finding the Fourth Proportional to 669,947.68, 924,517.12 and 368,135.20
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Solution
The fourth proportional to 669,947.68, 924,517.12 and 368,135.20 is: 508,020.71
Step by Step Solution
- Step 1: Write the proportion equation
669,947.68 : 924,517.12 = 368,135.20 : x - Step 2: Convert to fraction form
669,947.68/924,517.12 = 368,135.20/x - Step 3: Cross multiply
669,947.68x = 924,517.12 × 368,135.20 - Step 4: Simplify right side
669,947.68x = 340,347,294,874.62 - Step 5: Solve for x
x = 340,347,294,874.62/669,947.68 - Step 6: Final answer
x = 508,020.71
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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.