Finding the Fourth Proportional to 971,678.09, 1,340,909.29 and 536,117.87
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Solution
The fourth proportional to 971,678.09, 1,340,909.29 and 536,117.87 is: 739,839.09
Step by Step Solution
- Step 1: Write the proportion equation
971,678.09 : 1,340,909.29 = 536,117.87 : x - Step 2: Convert to fraction form
971,678.09/1,340,909.29 = 536,117.87/x - Step 3: Cross multiply
971,678.09x = 1,340,909.29 × 536,117.87 - Step 4: Simplify right side
971,678.09x = 718,885,432,418.01 - Step 5: Solve for x
x = 718,885,432,418.01/971,678.09 - Step 6: Final answer
x = 739,839.09
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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.