Finding the Fourth Proportional to 708,458.23, 977,657.79 and 386,165.53
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Solution
The fourth proportional to 708,458.23, 977,657.79 and 386,165.53 is: 532,900.49
Step by Step Solution
- Step 1: Write the proportion equation
708,458.23 : 977,657.79 = 386,165.53 : x - Step 2: Convert to fraction form
708,458.23/977,657.79 = 386,165.53/x - Step 3: Cross multiply
708,458.23x = 977,657.79 × 386,165.53 - Step 4: Simplify right side
708,458.23x = 377,537,738,633.98 - Step 5: Solve for x
x = 377,537,738,633.98/708,458.23 - Step 6: Final answer
x = 532,900.49
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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.