Finding the Fourth Proportional to 3,128,917.68, 4,317,549.50 and 1,752,069.96
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Solution
The fourth proportional to 3,128,917.68, 4,317,549.50 and 1,752,069.96 is: 2,417,656.70
Step by Step Solution
- Step 1: Write the proportion equation
3,128,917.68 : 4,317,549.50 = 1,752,069.96 : x - Step 2: Convert to fraction form
3,128,917.68/4,317,549.50 = 1,752,069.96/x - Step 3: Cross multiply
3,128,917.68x = 4,317,549.50 × 1,752,069.96 - Step 4: Simplify right side
3,128,917.68x = 7,564,648,779,763.02 - Step 5: Solve for x
x = 7,564,648,779,763.02/3,128,917.68 - Step 6: Final answer
x = 2,417,656.70
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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.