Finding the Fourth Proportional to 513,087.84, 708,063.84 and 286,737.12
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Solution
The fourth proportional to 513,087.84, 708,063.84 and 286,737.12 is: 395,698.69
Step by Step Solution
- Step 1: Write the proportion equation
513,087.84 : 708,063.84 = 286,737.12 : x - Step 2: Convert to fraction form
513,087.84/708,063.84 = 286,737.12/x - Step 3: Cross multiply
513,087.84x = 708,063.84 × 286,737.12 - Step 4: Simplify right side
513,087.84x = 203,028,186,257.74 - Step 5: Solve for x
x = 203,028,186,257.74/513,087.84 - Step 6: Final answer
x = 395,698.69
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1.5x scale
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.