Finding the Fourth Proportional to 2,118,312.96, 3,179,733.12 and 856,965.12
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Solution
The fourth proportional to 2,118,312.96, 3,179,733.12 and 856,965.12 is: 1,286,363.45
Step by Step Solution
- Step 1: Write the proportion equation
2,118,312.96 : 3,179,733.12 = 856,965.12 : x - Step 2: Convert to fraction form
2,118,312.96/3,179,733.12 = 856,965.12/x - Step 3: Cross multiply
2,118,312.96x = 3,179,733.12 × 856,965.12 - Step 4: Simplify right side
2,118,312.96x = 2,724,920,374,748.77 - Step 5: Solve for x
x = 2,724,920,374,748.77/2,118,312.96 - Step 6: Final answer
x = 1,286,363.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.