Finding the Fourth Proportional to 432,064.80, 646,930.80 and 338,752.80
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Solution
The fourth proportional to 432,064.80, 646,930.80 and 338,752.80 is: 507,214.70
Step by Step Solution
- Step 1: Write the proportion equation
432,064.80 : 646,930.80 = 338,752.80 : x - Step 2: Convert to fraction form
432,064.80/646,930.80 = 338,752.80/x - Step 3: Cross multiply
432,064.80x = 646,930.80 × 338,752.80 - Step 4: Simplify right side
432,064.80x = 219,149,619,906.24 - Step 5: Solve for x
x = 219,149,619,906.24/432,064.80 - Step 6: Final answer
x = 507,214.70
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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.