Finding the Fourth Proportional to 2,636,811.80, 3,955,217.70 and 642,267.80
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Solution
The fourth proportional to 2,636,811.80, 3,955,217.70 and 642,267.80 is: 963,401.70
Step by Step Solution
- Step 1: Write the proportion equation
2,636,811.80 : 3,955,217.70 = 642,267.80 : x - Step 2: Convert to fraction form
2,636,811.80/3,955,217.70 = 642,267.80/x - Step 3: Cross multiply
2,636,811.80x = 3,955,217.70 × 642,267.80 - Step 4: Simplify right side
2,636,811.80x = 2,540,308,970,700.06 - Step 5: Solve for x
x = 2,540,308,970,700.06/2,636,811.80 - Step 6: Final answer
x = 963,401.70
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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.