Finding the Fourth Proportional to 697,720.70, 1,046,581.05 and 172,408.70
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Solution
The fourth proportional to 697,720.70, 1,046,581.05 and 172,408.70 is: 258,613.05
Step by Step Solution
- Step 1: Write the proportion equation
697,720.70 : 1,046,581.05 = 172,408.70 : x - Step 2: Convert to fraction form
697,720.70/1,046,581.05 = 172,408.70/x - Step 3: Cross multiply
697,720.70x = 1,046,581.05 × 172,408.70 - Step 4: Simplify right side
697,720.70x = 180,439,678,275.14 - Step 5: Solve for x
x = 180,439,678,275.14/697,720.70 - Step 6: Final answer
x = 258,613.05
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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.