Finding the Fourth Proportional to 1,295,604.99, 1,787,930.28 and 722,644.74
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Solution
The fourth proportional to 1,295,604.99, 1,787,930.28 and 722,644.74 is: 997,247.17
Step by Step Solution
- Step 1: Write the proportion equation
1,295,604.99 : 1,787,930.28 = 722,644.74 : x - Step 2: Convert to fraction form
1,295,604.99/1,787,930.28 = 722,644.74/x - Step 3: Cross multiply
1,295,604.99x = 1,787,930.28 × 722,644.74 - Step 4: Simplify right side
1,295,604.99x = 1,292,038,412,328.73 - Step 5: Solve for x
x = 1,292,038,412,328.73/1,295,604.99 - Step 6: Final answer
x = 997,247.17
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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.