Finding the Fourth Proportional to 651,115.20, 976,672.80 and 402,283.20
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Solution
The fourth proportional to 651,115.20, 976,672.80 and 402,283.20 is: 603,424.80
Step by Step Solution
- Step 1: Write the proportion equation
651,115.20 : 976,672.80 = 402,283.20 : x - Step 2: Convert to fraction form
651,115.20/976,672.80 = 402,283.20/x - Step 3: Cross multiply
651,115.20x = 976,672.80 × 402,283.20 - Step 4: Simplify right side
651,115.20x = 392,899,059,336.96 - Step 5: Solve for x
x = 392,899,059,336.96/651,115.20 - Step 6: Final answer
x = 603,424.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.