Finding the Fourth Proportional to 467,790.25, 645,403.18 and 286,312.99
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Solution
The fourth proportional to 467,790.25, 645,403.18 and 286,312.99 is: 395,021.73
Step by Step Solution
- Step 1: Write the proportion equation
467,790.25 : 645,403.18 = 286,312.99 : x - Step 2: Convert to fraction form
467,790.25/645,403.18 = 286,312.99/x - Step 3: Cross multiply
467,790.25x = 645,403.18 × 286,312.99 - Step 4: Simplify right side
467,790.25x = 184,787,314,221.31 - Step 5: Solve for x
x = 184,787,314,221.31/467,790.25 - Step 6: Final answer
x = 395,021.73
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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.