Finding the Fourth Proportional to 918,711.12, 1,267,814.70 and 510,809.81
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Solution
The fourth proportional to 918,711.12, 1,267,814.70 and 510,809.81 is: 704,913.84
Step by Step Solution
- Step 1: Write the proportion equation
918,711.12 : 1,267,814.70 = 510,809.81 : x - Step 2: Convert to fraction form
918,711.12/1,267,814.70 = 510,809.81/x - Step 3: Cross multiply
918,711.12x = 1,267,814.70 × 510,809.81 - Step 4: Simplify right side
918,711.12x = 647,612,179,683.13 - Step 5: Solve for x
x = 647,612,179,683.13/918,711.12 - Step 6: Final answer
x = 704,913.84
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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.