Finding the Fourth Proportional to 456,521.69, 630,201.72 and 272,825.08
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Solution
The fourth proportional to 456,521.69, 630,201.72 and 272,825.08 is: 376,619.20
Step by Step Solution
- Step 1: Write the proportion equation
456,521.69 : 630,201.72 = 272,825.08 : x - Step 2: Convert to fraction form
456,521.69/630,201.72 = 272,825.08/x - Step 3: Cross multiply
456,521.69x = 630,201.72 × 272,825.08 - Step 4: Simplify right side
456,521.69x = 171,934,832,588.09 - Step 5: Solve for x
x = 171,934,832,588.09/456,521.69 - Step 6: Final answer
x = 376,619.20
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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.