Finding the Fourth Proportional to 3,645,198.84, 5,030,421.12 and 2,013,599.64
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Solution
The fourth proportional to 3,645,198.84, 5,030,421.12 and 2,013,599.64 is: 2,778,793.31
Step by Step Solution
- Step 1: Write the proportion equation
3,645,198.84 : 5,030,421.12 = 2,013,599.64 : x - Step 2: Convert to fraction form
3,645,198.84/5,030,421.12 = 2,013,599.64/x - Step 3: Cross multiply
3,645,198.84x = 5,030,421.12 × 2,013,599.64 - Step 4: Simplify right side
3,645,198.84x = 10,129,254,156,280.40 - Step 5: Solve for x
x = 10,129,254,156,280.40/3,645,198.84 - Step 6: Final answer
x = 2,778,793.31
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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.