Finding the Fourth Proportional to 430,316.66, 644,884.47 and 272,262.17
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Solution
The fourth proportional to 430,316.66, 644,884.47 and 272,262.17 is: 408,019.63
Step by Step Solution
- Step 1: Write the proportion equation
430,316.66 : 644,884.47 = 272,262.17 : x - Step 2: Convert to fraction form
430,316.66/644,884.47 = 272,262.17/x - Step 3: Cross multiply
430,316.66x = 644,884.47 × 272,262.17 - Step 4: Simplify right side
430,316.66x = 175,577,641,977.08 - Step 5: Solve for x
x = 175,577,641,977.08/430,316.66 - Step 6: Final answer
x = 408,019.63
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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.