Finding the Fourth Proportional to 977,950.29, 1,466,640.86 and 378,777.81
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Solution
The fourth proportional to 977,950.29, 1,466,640.86 and 378,777.81 is: 568,056.49
Step by Step Solution
- Step 1: Write the proportion equation
977,950.29 : 1,466,640.86 = 378,777.81 : x - Step 2: Convert to fraction form
977,950.29/1,466,640.86 = 378,777.81/x - Step 3: Cross multiply
977,950.29x = 1,466,640.86 × 378,777.81 - Step 4: Simplify right side
977,950.29x = 555,531,011,113.43 - Step 5: Solve for x
x = 555,531,011,113.43/977,950.29 - Step 6: Final answer
x = 568,056.49
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1.5x scale
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.