Finding the Fourth Proportional to 1,430,399.79, 1,973,952.51 and 785,861.51
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Solution
The fourth proportional to 1,430,399.79, 1,973,952.51 and 785,861.51 is: 1,084,489.32
Step by Step Solution
- Step 1: Write the proportion equation
1,430,399.79 : 1,973,952.51 = 785,861.51 : x - Step 2: Convert to fraction form
1,430,399.79/1,973,952.51 = 785,861.51/x - Step 3: Cross multiply
1,430,399.79x = 1,973,952.51 × 785,861.51 - Step 4: Simplify right side
1,430,399.79x = 1,551,253,290,307.13 - Step 5: Solve for x
x = 1,551,253,290,307.13/1,430,399.79 - Step 6: Final answer
x = 1,084,489.32
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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.