Finding the Fourth Proportional to 669,906.74, 924,471.09 and 368,120.18
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Solution
The fourth proportional to 669,906.74, 924,471.09 and 368,120.18 is: 508,005.73
Step by Step Solution
- Step 1: Write the proportion equation
669,906.74 : 924,471.09 = 368,120.18 : x - Step 2: Convert to fraction form
669,906.74/924,471.09 = 368,120.18/x - Step 3: Cross multiply
669,906.74x = 924,471.09 × 368,120.18 - Step 4: Simplify right side
669,906.74x = 340,316,464,055.60 - Step 5: Solve for x
x = 340,316,464,055.60/669,906.74 - Step 6: Final answer
x = 508,005.73
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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.