Finding the Fourth Proportional to 572,356.24, 789,887.40 and 317,711.68
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Solution
The fourth proportional to 572,356.24, 789,887.40 and 317,711.68 is: 438,461.98
Step by Step Solution
- Step 1: Write the proportion equation
572,356.24 : 789,887.40 = 317,711.68 : x - Step 2: Convert to fraction form
572,356.24/789,887.40 = 317,711.68/x - Step 3: Cross multiply
572,356.24x = 789,887.40 × 317,711.68 - Step 4: Simplify right side
572,356.24x = 250,956,452,864.83 - Step 5: Solve for x
x = 250,956,452,864.83/572,356.24 - Step 6: Final answer
x = 438,461.98
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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.