Finding the Fourth Proportional to 432,076.80, 646,948.80 and 338,764.80
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Solution
The fourth proportional to 432,076.80, 646,948.80 and 338,764.80 is: 507,232.70
Step by Step Solution
- Step 1: Write the proportion equation
432,076.80 : 646,948.80 = 338,764.80 : x - Step 2: Convert to fraction form
432,076.80/646,948.80 = 338,764.80/x - Step 3: Cross multiply
432,076.80x = 646,948.80 × 338,764.80 - Step 4: Simplify right side
432,076.80x = 219,163,480,842.24 - Step 5: Solve for x
x = 219,163,480,842.24/432,076.80 - Step 6: Final answer
x = 507,232.70
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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.