Finding the Fourth Proportional to 419,847.84, 578,932.65 and 283,645.26
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Solution
The fourth proportional to 419,847.84, 578,932.65 and 283,645.26 is: 391,121.46
Step by Step Solution
- Step 1: Write the proportion equation
419,847.84 : 578,932.65 = 283,645.26 : x - Step 2: Convert to fraction form
419,847.84/578,932.65 = 283,645.26/x - Step 3: Cross multiply
419,847.84x = 578,932.65 × 283,645.26 - Step 4: Simplify right side
419,847.84x = 164,211,502,031.74 - Step 5: Solve for x
x = 164,211,502,031.74/419,847.84 - Step 6: Final answer
x = 391,121.46
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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.