Finding the Fourth Proportional to 2,116,267.76, 2,919,995.16 and 1,257,117.68
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Solution
The fourth proportional to 2,116,267.76, 2,919,995.16 and 1,257,117.68 is: 1,734,552.50
Step by Step Solution
- Step 1: Write the proportion equation
2,116,267.76 : 2,919,995.16 = 1,257,117.68 : x - Step 2: Convert to fraction form
2,116,267.76/2,919,995.16 = 1,257,117.68/x - Step 3: Cross multiply
2,116,267.76x = 2,919,995.16 × 1,257,117.68 - Step 4: Simplify right side
2,116,267.76x = 3,670,777,541,150.43 - Step 5: Solve for x
x = 3,670,777,541,150.43/2,116,267.76 - Step 6: Final answer
x = 1,734,552.50
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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.