Finding the Fourth Proportional to 660,365.80, 990,548.70 and 555,389.80
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Solution
The fourth proportional to 660,365.80, 990,548.70 and 555,389.80 is: 833,084.70
Step by Step Solution
- Step 1: Write the proportion equation
660,365.80 : 990,548.70 = 555,389.80 : x - Step 2: Convert to fraction form
660,365.80/990,548.70 = 555,389.80/x - Step 3: Cross multiply
660,365.80x = 990,548.70 × 555,389.80 - Step 4: Simplify right side
660,365.80x = 550,140,644,383.26 - Step 5: Solve for x
x = 550,140,644,383.26/660,365.80 - Step 6: Final answer
x = 833,084.70
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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.