Finding the Fourth Proportional to 790,148.84, 1,090,138.50 and 514,380.80
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Solution
The fourth proportional to 790,148.84, 1,090,138.50 and 514,380.80 is: 709,671.75
Step by Step Solution
- Step 1: Write the proportion equation
790,148.84 : 1,090,138.50 = 514,380.80 : x - Step 2: Convert to fraction form
790,148.84/1,090,138.50 = 514,380.80/x - Step 3: Cross multiply
790,148.84x = 1,090,138.50 × 514,380.80 - Step 4: Simplify right side
790,148.84x = 560,746,308,290.11 - Step 5: Solve for x
x = 560,746,308,290.11/790,148.84 - Step 6: Final answer
x = 709,671.75
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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.