Finding the Fourth Proportional to 572,072.13, 858,246.93 and 172,689.05
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Solution
The fourth proportional to 572,072.13, 858,246.93 and 172,689.05 is: 259,075.45
Step by Step Solution
- Step 1: Write the proportion equation
572,072.13 : 858,246.93 = 172,689.05 : x - Step 2: Convert to fraction form
572,072.13/858,246.93 = 172,689.05/x - Step 3: Cross multiply
572,072.13x = 858,246.93 × 172,689.05 - Step 4: Simplify right side
572,072.13x = 148,209,842,715.88 - Step 5: Solve for x
x = 148,209,842,715.88/572,072.13 - Step 6: Final answer
x = 259,075.45
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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.