Finding the Fourth Proportional to 1,295,645.68, 1,787,993.76 and 722,671.12
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Solution
The fourth proportional to 1,295,645.68, 1,787,993.76 and 722,671.12 is: 997,287.66
Step by Step Solution
- Step 1: Write the proportion equation
1,295,645.68 : 1,787,993.76 = 722,671.12 : x - Step 2: Convert to fraction form
1,295,645.68/1,787,993.76 = 722,671.12/x - Step 3: Cross multiply
1,295,645.68x = 1,787,993.76 × 722,671.12 - Step 4: Simplify right side
1,295,645.68x = 1,292,131,453,092.21 - Step 5: Solve for x
x = 1,292,131,453,092.21/1,295,645.68 - Step 6: Final answer
x = 997,287.66
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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.