Finding the Fourth Proportional to 641,206.10, 961,809.15 and 616,711.70
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Solution
The fourth proportional to 641,206.10, 961,809.15 and 616,711.70 is: 925,067.55
Step by Step Solution
- Step 1: Write the proportion equation
641,206.10 : 961,809.15 = 616,711.70 : x - Step 2: Convert to fraction form
641,206.10/961,809.15 = 616,711.70/x - Step 3: Cross multiply
641,206.10x = 961,809.15 × 616,711.70 - Step 4: Simplify right side
641,206.10x = 593,158,955,972.06 - Step 5: Solve for x
x = 593,158,955,972.06/641,206.10 - Step 6: Final answer
x = 925,067.55
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1.5x scale
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.