Finding the Fourth Proportional to 669,949.68, 924,519.88 and 368,137.20
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Solution
The fourth proportional to 669,949.68, 924,519.88 and 368,137.20 is: 508,023.47
Step by Step Solution
- Step 1: Write the proportion equation
669,949.68 : 924,519.88 = 368,137.20 : x - Step 2: Convert to fraction form
669,949.68/924,519.88 = 368,137.20/x - Step 3: Cross multiply
669,949.68x = 924,519.88 × 368,137.20 - Step 4: Simplify right side
669,949.68x = 340,350,159,967.54 - Step 5: Solve for x
x = 340,350,159,967.54/669,949.68 - Step 6: Final answer
x = 508,023.47
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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.