Finding the Fourth Proportional to 2,074,432.68, 2,860,814.70 and 1,422,006.84
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Solution
The fourth proportional to 2,074,432.68, 2,860,814.70 and 1,422,006.84 is: 1,961,065.36
Step by Step Solution
- Step 1: Write the proportion equation
2,074,432.68 : 2,860,814.70 = 1,422,006.84 : x - Step 2: Convert to fraction form
2,074,432.68/2,860,814.70 = 1,422,006.84/x - Step 3: Cross multiply
2,074,432.68x = 2,860,814.70 × 1,422,006.84 - Step 4: Simplify right side
2,074,432.68x = 4,068,098,071,372.55 - Step 5: Solve for x
x = 4,068,098,071,372.55/2,074,432.68 - Step 6: Final answer
x = 1,961,065.36
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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.