Finding the Fourth Proportional to 830,047.10, 1,246,237.05 and 515,119.10
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Solution
The fourth proportional to 830,047.10, 1,246,237.05 and 515,119.10 is: 773,402.51
Step by Step Solution
- Step 1: Write the proportion equation
830,047.10 : 1,246,237.05 = 515,119.10 : x - Step 2: Convert to fraction form
830,047.10/1,246,237.05 = 515,119.10/x - Step 3: Cross multiply
830,047.10x = 1,246,237.05 × 515,119.10 - Step 4: Simplify right side
830,047.10x = 641,960,507,582.66 - Step 5: Solve for x
x = 641,960,507,582.66/830,047.10 - Step 6: Final answer
x = 773,402.51
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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.