Finding the Fourth Proportional to 3,128,447.13, 4,317,257.04 and 1,697,663.13
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Solution
The fourth proportional to 3,128,447.13, 4,317,257.04 and 1,697,663.13 is: 2,342,775.12
Step by Step Solution
- Step 1: Write the proportion equation
3,128,447.13 : 4,317,257.04 = 1,697,663.13 : x - Step 2: Convert to fraction form
3,128,447.13/4,317,257.04 = 1,697,663.13/x - Step 3: Cross multiply
3,128,447.13x = 4,317,257.04 × 1,697,663.13 - Step 4: Simplify right side
3,128,447.13x = 7,329,248,099,540.94 - Step 5: Solve for x
x = 7,329,248,099,540.94/3,128,447.13 - Step 6: Final answer
x = 2,342,775.12
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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.