Finding the Fourth Proportional to 623,153.40, 858,944.28 and 486,950.68
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Solution
The fourth proportional to 623,153.40, 858,944.28 and 486,950.68 is: 671,204.72
Step by Step Solution
- Step 1: Write the proportion equation
623,153.40 : 858,944.28 = 486,950.68 : x - Step 2: Convert to fraction form
623,153.40/858,944.28 = 486,950.68/x - Step 3: Cross multiply
623,153.40x = 858,944.28 × 486,950.68 - Step 4: Simplify right side
623,153.40x = 418,263,501,228.11 - Step 5: Solve for x
x = 418,263,501,228.11/623,153.40 - Step 6: Final answer
x = 671,204.72
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1.5x scale
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.