Finding the Fourth Proportional to 708,379.17, 977,194.97 and 449,813.73
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Solution
The fourth proportional to 708,379.17, 977,194.97 and 449,813.73 is: 620,509.09
Step by Step Solution
- Step 1: Write the proportion equation
708,379.17 : 977,194.97 = 449,813.73 : x - Step 2: Convert to fraction form
708,379.17/977,194.97 = 449,813.73/x - Step 3: Cross multiply
708,379.17x = 977,194.97 × 449,813.73 - Step 4: Simplify right side
708,379.17x = 439,555,712,143.87 - Step 5: Solve for x
x = 439,555,712,143.87/708,379.17 - Step 6: Final answer
x = 620,509.09
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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.