Finding the Fourth Proportional to 2,136,947.87, 2,948,965.68 and 1,156,864.98
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Solution
The fourth proportional to 2,136,947.87, 2,948,965.68 and 1,156,864.98 is: 1,596,461.56
Step by Step Solution
- Step 1: Write the proportion equation
2,136,947.87 : 2,948,965.68 = 1,156,864.98 : x - Step 2: Convert to fraction form
2,136,947.87/2,948,965.68 = 1,156,864.98/x - Step 3: Cross multiply
2,136,947.87x = 2,948,965.68 × 1,156,864.98 - Step 4: Simplify right side
2,136,947.87x = 3,411,555,137,810.75 - Step 5: Solve for x
x = 3,411,555,137,810.75/2,136,947.87 - Step 6: Final answer
x = 1,596,461.56
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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.