Finding the Fourth Proportional to 3,387,381.12, 4,674,465 and 1,917,258.12
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Solution
The fourth proportional to 3,387,381.12, 4,674,465 and 1,917,258.12 is: 2,645,747.75
Step by Step Solution
- Step 1: Write the proportion equation
3,387,381.12 : 4,674,465 = 1,917,258.12 : x - Step 2: Convert to fraction form
3,387,381.12/4,674,465 = 1,917,258.12/x - Step 3: Cross multiply
3,387,381.12x = 4,674,465 × 1,917,258.12 - Step 4: Simplify right side
3,387,381.12x = 8,962,155,977,905.80 - Step 5: Solve for x
x = 8,962,155,977,905.80/3,387,381.12 - Step 6: Final answer
x = 2,645,747.75
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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.