Finding the Fourth Proportional to 537,916.20, 806,874.30 and 513,421.80
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Solution
The fourth proportional to 537,916.20, 806,874.30 and 513,421.80 is: 770,132.70
Step by Step Solution
- Step 1: Write the proportion equation
537,916.20 : 806,874.30 = 513,421.80 : x - Step 2: Convert to fraction form
537,916.20/806,874.30 = 513,421.80/x - Step 3: Cross multiply
537,916.20x = 806,874.30 × 513,421.80 - Step 4: Simplify right side
537,916.20x = 414,266,855,479.74 - Step 5: Solve for x
x = 414,266,855,479.74/537,916.20 - Step 6: Final answer
x = 770,132.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.