Finding the Fourth Proportional to 572,516.16, 790,014.56 and 317,839.68
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Solution
The fourth proportional to 572,516.16, 790,014.56 and 317,839.68 is: 438,586.70
Step by Step Solution
- Step 1: Write the proportion equation
572,516.16 : 790,014.56 = 317,839.68 : x - Step 2: Convert to fraction form
572,516.16/790,014.56 = 317,839.68/x - Step 3: Cross multiply
572,516.16x = 790,014.56 × 317,839.68 - Step 4: Simplify right side
572,516.16x = 251,097,974,945.74 - Step 5: Solve for x
x = 251,097,974,945.74/572,516.16 - Step 6: Final answer
x = 438,586.70
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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.