Finding the Fourth Proportional to 615,260.80, 922,027.20 and 489,116.80
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Solution
The fourth proportional to 615,260.80, 922,027.20 and 489,116.80 is: 732,988.34
Step by Step Solution
- Step 1: Write the proportion equation
615,260.80 : 922,027.20 = 489,116.80 : x - Step 2: Convert to fraction form
615,260.80/922,027.20 = 489,116.80/x - Step 3: Cross multiply
615,260.80x = 922,027.20 × 489,116.80 - Step 4: Simplify right side
615,260.80x = 450,978,993,576.96 - Step 5: Solve for x
x = 450,978,993,576.96/615,260.80 - Step 6: Final answer
x = 732,988.34
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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.