Finding the Fourth Proportional to 752,688.15, 1,038,710.17 and 408,524.09
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Solution
The fourth proportional to 752,688.15, 1,038,710.17 and 408,524.09 is: 563,763.52
Step by Step Solution
- Step 1: Write the proportion equation
752,688.15 : 1,038,710.17 = 408,524.09 : x - Step 2: Convert to fraction form
752,688.15/1,038,710.17 = 408,524.09/x - Step 3: Cross multiply
752,688.15x = 1,038,710.17 × 408,524.09 - Step 4: Simplify right side
752,688.15x = 424,338,119,736.82 - Step 5: Solve for x
x = 424,338,119,736.82/752,688.15 - Step 6: Final answer
x = 563,763.52
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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.