Finding the Fourth Proportional to 4,723,715.20, 7,104,235.20 and 4,238,492.80
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Solution
The fourth proportional to 4,723,715.20, 7,104,235.20 and 4,238,492.80 is: 6,374,484.59
Step by Step Solution
- Step 1: Write the proportion equation
4,723,715.20 : 7,104,235.20 = 4,238,492.80 : x - Step 2: Convert to fraction form
4,723,715.20/7,104,235.20 = 4,238,492.80/x - Step 3: Cross multiply
4,723,715.20x = 7,104,235.20 × 4,238,492.80 - Step 4: Simplify right side
4,723,715.20x = 30,111,249,744,706.56 - Step 5: Solve for x
x = 30,111,249,744,706.56/4,723,715.20 - Step 6: Final answer
x = 6,374,484.59
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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.