Finding the Fourth Proportional to 572,496.18, 790,013.88 and 317,830.98
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Solution
The fourth proportional to 572,496.18, 790,013.88 and 317,830.98 is: 438,589.63
Step by Step Solution
- Step 1: Write the proportion equation
572,496.18 : 790,013.88 = 317,830.98 : x - Step 2: Convert to fraction form
572,496.18/790,013.88 = 317,830.98/x - Step 3: Cross multiply
572,496.18x = 790,013.88 × 317,830.98 - Step 4: Simplify right side
572,496.18x = 251,090,885,694.00 - Step 5: Solve for x
x = 251,090,885,694.00/572,496.18 - Step 6: Final answer
x = 438,589.63
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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.