Finding the Fourth Proportional to 708,487.70, 977,849.48 and 491,285.79
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Solution
The fourth proportional to 708,487.70, 977,849.48 and 491,285.79 is: 678,069.02
Step by Step Solution
- Step 1: Write the proportion equation
708,487.70 : 977,849.48 = 491,285.79 : x - Step 2: Convert to fraction form
708,487.70/977,849.48 = 491,285.79/x - Step 3: Cross multiply
708,487.70x = 977,849.48 × 491,285.79 - Step 4: Simplify right side
708,487.70x = 480,403,555,511.10 - Step 5: Solve for x
x = 480,403,555,511.10/708,487.70 - Step 6: Final answer
x = 678,069.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.