Finding the Fourth Proportional to 642,848.30, 964,432.99 and 453,678.14
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Solution
The fourth proportional to 642,848.30, 964,432.99 and 453,678.14 is: 680,630.51
Step by Step Solution
- Step 1: Write the proportion equation
642,848.30 : 964,432.99 = 453,678.14 : x - Step 2: Convert to fraction form
642,848.30/964,432.99 = 453,678.14/x - Step 3: Cross multiply
642,848.30x = 964,432.99 × 453,678.14 - Step 4: Simplify right side
642,848.30x = 437,542,168,036.02 - Step 5: Solve for x
x = 437,542,168,036.02/642,848.30 - Step 6: Final answer
x = 680,630.51
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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.