Finding the Fourth Proportional to 820,387.68, 1,132,132.74 and 457,807.68
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Solution
The fourth proportional to 820,387.68, 1,132,132.74 and 457,807.68 is: 631,773.34
Step by Step Solution
- Step 1: Write the proportion equation
820,387.68 : 1,132,132.74 = 457,807.68 : x - Step 2: Convert to fraction form
820,387.68/1,132,132.74 = 457,807.68/x - Step 3: Cross multiply
820,387.68x = 1,132,132.74 × 457,807.68 - Step 4: Simplify right side
820,387.68x = 518,299,063,151.44 - Step 5: Solve for x
x = 518,299,063,151.44/820,387.68 - Step 6: Final answer
x = 631,773.34
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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.