Finding the Fourth Proportional to 815,003.16, 1,124,503.98 and 488,368.68
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Solution
The fourth proportional to 815,003.16, 1,124,503.98 and 488,368.68 is: 673,828.71
Step by Step Solution
- Step 1: Write the proportion equation
815,003.16 : 1,124,503.98 = 488,368.68 : x - Step 2: Convert to fraction form
815,003.16/1,124,503.98 = 488,368.68/x - Step 3: Cross multiply
815,003.16x = 1,124,503.98 × 488,368.68 - Step 4: Simplify right side
815,003.16x = 549,172,524,367.35 - Step 5: Solve for x
x = 549,172,524,367.35/815,003.16 - Step 6: Final answer
x = 673,828.71
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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.