Finding the Fourth Proportional to 631,562.20, 947,407.05 and 205,080.19
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Solution
The fourth proportional to 631,562.20, 947,407.05 and 205,080.19 is: 307,640.99
Step by Step Solution
- Step 1: Write the proportion equation
631,562.20 : 947,407.05 = 205,080.19 : x - Step 2: Convert to fraction form
631,562.20/947,407.05 = 205,080.19/x - Step 3: Cross multiply
631,562.20x = 947,407.05 × 205,080.19 - Step 4: Simplify right side
631,562.20x = 194,294,417,821.34 - Step 5: Solve for x
x = 194,294,417,821.34/631,562.20 - Step 6: Final answer
x = 307,640.99
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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.