Finding the Fourth Proportional to 3,128,443.63, 4,317,252.20 and 1,697,659.63
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Solution
The fourth proportional to 3,128,443.63, 4,317,252.20 and 1,697,659.63 is: 2,342,770.28
Step by Step Solution
- Step 1: Write the proportion equation
3,128,443.63 : 4,317,252.20 = 1,697,659.63 : x - Step 2: Convert to fraction form
3,128,443.63/4,317,252.20 = 1,697,659.63/x - Step 3: Cross multiply
3,128,443.63x = 4,317,252.20 × 1,697,659.63 - Step 4: Simplify right side
3,128,443.63x = 7,329,224,772,468.69 - Step 5: Solve for x
x = 7,329,224,772,468.69/3,128,443.63 - Step 6: Final answer
x = 2,342,770.28
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1.5x scale
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.