Finding the Fourth Proportional to 998,816.16, 1,498,267.98 and 288,915.96
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Solution
The fourth proportional to 998,816.16, 1,498,267.98 and 288,915.96 is: 433,386.59
Step by Step Solution
- Step 1: Write the proportion equation
998,816.16 : 1,498,267.98 = 288,915.96 : x - Step 2: Convert to fraction form
998,816.16/1,498,267.98 = 288,915.96/x - Step 3: Cross multiply
998,816.16x = 1,498,267.98 × 288,915.96 - Step 4: Simplify right side
998,816.16x = 432,873,531,778.96 - Step 5: Solve for x
x = 432,873,531,778.96/998,816.16 - Step 6: Final answer
x = 433,386.59
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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.