Finding the Fourth Proportional to 841,355.28, 1,161,117.36 and 459,417.60
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Solution
The fourth proportional to 841,355.28, 1,161,117.36 and 459,417.60 is: 634,021.99
Step by Step Solution
- Step 1: Write the proportion equation
841,355.28 : 1,161,117.36 = 459,417.60 : x - Step 2: Convert to fraction form
841,355.28/1,161,117.36 = 459,417.60/x - Step 3: Cross multiply
841,355.28x = 1,161,117.36 × 459,417.60 - Step 4: Simplify right side
841,355.28x = 533,437,750,849.54 - Step 5: Solve for x
x = 533,437,750,849.54/841,355.28 - Step 6: Final answer
x = 634,021.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.