Finding the Fourth Proportional to 704,008.61, 971,471.81 and 398,069.99
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Solution
The fourth proportional to 704,008.61, 971,471.81 and 398,069.99 is: 549,302.62
Step by Step Solution
- Step 1: Write the proportion equation
704,008.61 : 971,471.81 = 398,069.99 : x - Step 2: Convert to fraction form
704,008.61/971,471.81 = 398,069.99/x - Step 3: Cross multiply
704,008.61x = 971,471.81 × 398,069.99 - Step 4: Simplify right side
704,008.61x = 386,713,773,691.98 - Step 5: Solve for x
x = 386,713,773,691.98/704,008.61 - Step 6: Final answer
x = 549,302.62
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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.