Finding the Fourth Proportional to 470,190.08, 648,921.60 and 291,368.96
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Solution
The fourth proportional to 470,190.08, 648,921.60 and 291,368.96 is: 402,125.91
Step by Step Solution
- Step 1: Write the proportion equation
470,190.08 : 648,921.60 = 291,368.96 : x - Step 2: Convert to fraction form
470,190.08/648,921.60 = 291,368.96/x - Step 3: Cross multiply
470,190.08x = 648,921.60 × 291,368.96 - Step 4: Simplify right side
470,190.08x = 189,075,611,713.54 - Step 5: Solve for x
x = 189,075,611,713.54/470,190.08 - Step 6: Final answer
x = 402,125.91
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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.