Finding the Fourth Proportional to 717,764.29, 1,076,646.28 and 212,285.86
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Solution
The fourth proportional to 717,764.29, 1,076,646.28 and 212,285.86 is: 318,428.75
Step by Step Solution
- Step 1: Write the proportion equation
717,764.29 : 1,076,646.28 = 212,285.86 : x - Step 2: Convert to fraction form
717,764.29/1,076,646.28 = 212,285.86/x - Step 3: Cross multiply
717,764.29x = 1,076,646.28 × 212,285.86 - Step 4: Simplify right side
717,764.29x = 228,556,784,697.44 - Step 5: Solve for x
x = 228,556,784,697.44/717,764.29 - Step 6: Final answer
x = 318,428.75
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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.