Finding the Fourth Proportional to 664,417.61, 916,577.40 and 434,873.84
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Solution
The fourth proportional to 664,417.61, 916,577.40 and 434,873.84 is: 599,917.17
Step by Step Solution
- Step 1: Write the proportion equation
664,417.61 : 916,577.40 = 434,873.84 : x - Step 2: Convert to fraction form
664,417.61/916,577.40 = 434,873.84/x - Step 3: Cross multiply
664,417.61x = 916,577.40 × 434,873.84 - Step 4: Simplify right side
664,417.61x = 398,595,529,012.33 - Step 5: Solve for x
x = 398,595,529,012.33/664,417.61 - Step 6: Final answer
x = 599,917.17
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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.