Finding the Fourth Proportional to 614,432.70, 921,649.05 and 509,370.30
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Solution
The fourth proportional to 614,432.70, 921,649.05 and 509,370.30 is: 764,055.45
Step by Step Solution
- Step 1: Write the proportion equation
614,432.70 : 921,649.05 = 509,370.30 : x - Step 2: Convert to fraction form
614,432.70/921,649.05 = 509,370.30/x - Step 3: Cross multiply
614,432.70x = 921,649.05 × 509,370.30 - Step 4: Simplify right side
614,432.70x = 469,460,653,093.22 - Step 5: Solve for x
x = 469,460,653,093.22/614,432.70 - Step 6: Final answer
x = 764,055.45
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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.