Finding the Fourth Proportional to 749,857.21, 1,125,109.85 and 403,235.55
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Solution
The fourth proportional to 749,857.21, 1,125,109.85 and 403,235.55 is: 605,027.58
Step by Step Solution
- Step 1: Write the proportion equation
749,857.21 : 1,125,109.85 = 403,235.55 : x - Step 2: Convert to fraction form
749,857.21/1,125,109.85 = 403,235.55/x - Step 3: Cross multiply
749,857.21x = 1,125,109.85 × 403,235.55 - Step 4: Simplify right side
749,857.21x = 453,684,293,819.06 - Step 5: Solve for x
x = 453,684,293,819.06/749,857.21 - Step 6: Final answer
x = 605,027.58
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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.