Finding the Fourth Proportional to 2,925,988.64, 4,037,701.88 and 1,636,579.92
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Solution
The fourth proportional to 2,925,988.64, 4,037,701.88 and 1,636,579.92 is: 2,258,389.43
Step by Step Solution
- Step 1: Write the proportion equation
2,925,988.64 : 4,037,701.88 = 1,636,579.92 : x - Step 2: Convert to fraction form
2,925,988.64/4,037,701.88 = 1,636,579.92/x - Step 3: Cross multiply
2,925,988.64x = 4,037,701.88 × 1,636,579.92 - Step 4: Simplify right side
2,925,988.64x = 6,608,021,819,754.25 - Step 5: Solve for x
x = 6,608,021,819,754.25/2,925,988.64 - Step 6: Final answer
x = 2,258,389.43
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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.