Finding the Fourth Proportional to 564,212.55, 778,614.26 and 309,565.56
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Solution
The fourth proportional to 564,212.55, 778,614.26 and 309,565.56 is: 427,200.99
Step by Step Solution
- Step 1: Write the proportion equation
564,212.55 : 778,614.26 = 309,565.56 : x - Step 2: Convert to fraction form
564,212.55/778,614.26 = 309,565.56/x - Step 3: Cross multiply
564,212.55x = 778,614.26 × 309,565.56 - Step 4: Simplify right side
564,212.55x = 241,032,157,873.06 - Step 5: Solve for x
x = 241,032,157,873.06/564,212.55 - Step 6: Final answer
x = 427,200.99
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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.