Finding the Fourth Proportional to 534,915.05, 738,258.46 and 331,031.63
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Solution
The fourth proportional to 534,915.05, 738,258.46 and 331,031.63 is: 456,870.50
Step by Step Solution
- Step 1: Write the proportion equation
534,915.05 : 738,258.46 = 331,031.63 : x - Step 2: Convert to fraction form
534,915.05/738,258.46 = 331,031.63/x - Step 3: Cross multiply
534,915.05x = 738,258.46 × 331,031.63 - Step 4: Simplify right side
534,915.05x = 244,386,902,393.16 - Step 5: Solve for x
x = 244,386,902,393.16/534,915.05 - Step 6: Final answer
x = 456,870.50
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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.