Finding the Fourth Proportional to 1,192,928.68, 1,645,699.10 and 709,219.36
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Solution
The fourth proportional to 1,192,928.68, 1,645,699.10 and 709,219.36 is: 978,400.20
Step by Step Solution
- Step 1: Write the proportion equation
1,192,928.68 : 1,645,699.10 = 709,219.36 : x - Step 2: Convert to fraction form
1,192,928.68/1,645,699.10 = 709,219.36/x - Step 3: Cross multiply
1,192,928.68x = 1,645,699.10 × 709,219.36 - Step 4: Simplify right side
1,192,928.68x = 1,167,161,662,454.58 - Step 5: Solve for x
x = 1,167,161,662,454.58/1,192,928.68 - Step 6: Final answer
x = 978,400.20
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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.