Finding the Fourth Proportional to 717,897.70, 1,076,652.15 and 212,457.70
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Solution
The fourth proportional to 717,897.70, 1,076,652.15 and 212,457.70 is: 318,629.02
Step by Step Solution
- Step 1: Write the proportion equation
717,897.70 : 1,076,652.15 = 212,457.70 : x - Step 2: Convert to fraction form
717,897.70/1,076,652.15 = 212,457.70/x - Step 3: Cross multiply
717,897.70x = 1,076,652.15 × 212,457.70 - Step 4: Simplify right side
717,897.70x = 228,743,039,489.06 - Step 5: Solve for x
x = 228,743,039,489.06/717,897.70 - Step 6: Final answer
x = 318,629.02
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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.