Finding the Fourth Proportional to 405,878.36, 609,027.54 and 294,478.06
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Solution
The fourth proportional to 405,878.36, 609,027.54 and 294,478.06 is: 441,869.45
Step by Step Solution
- Step 1: Write the proportion equation
405,878.36 : 609,027.54 = 294,478.06 : x - Step 2: Convert to fraction form
405,878.36/609,027.54 = 294,478.06/x - Step 3: Cross multiply
405,878.36x = 609,027.54 × 294,478.06 - Step 4: Simplify right side
405,878.36x = 179,345,248,465.77 - Step 5: Solve for x
x = 179,345,248,465.77/405,878.36 - Step 6: Final answer
x = 441,869.45
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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.