Finding the Fourth Proportional to 669,639.29, 924,108.95 and 363,721.64
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Solution
The fourth proportional to 669,639.29, 924,108.95 and 363,721.64 is: 501,939.52
Step by Step Solution
- Step 1: Write the proportion equation
669,639.29 : 924,108.95 = 363,721.64 : x - Step 2: Convert to fraction form
669,639.29/924,108.95 = 363,721.64/x - Step 3: Cross multiply
669,639.29x = 924,108.95 × 363,721.64 - Step 4: Simplify right side
669,639.29x = 336,118,421,014.07 - Step 5: Solve for x
x = 336,118,421,014.07/669,639.29 - Step 6: Final answer
x = 501,939.52
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1.5x scale
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.