Finding the Fourth Proportional to 2,137,855.32, 2,950,282.80 and 1,170,985.68
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Solution
The fourth proportional to 2,137,855.32, 2,950,282.80 and 1,170,985.68 is: 1,615,983.49
Step by Step Solution
- Step 1: Write the proportion equation
2,137,855.32 : 2,950,282.80 = 1,170,985.68 : x - Step 2: Convert to fraction form
2,137,855.32/2,950,282.80 = 1,170,985.68/x - Step 3: Cross multiply
2,137,855.32x = 2,950,282.80 × 1,170,985.68 - Step 4: Simplify right side
2,137,855.32x = 3,454,738,910,750.30 - Step 5: Solve for x
x = 3,454,738,910,750.30/2,137,855.32 - Step 6: Final answer
x = 1,615,983.49
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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.