Finding the Fourth Proportional to 1,292,352.55, 1,783,647.06 and 776,393.68
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Solution
The fourth proportional to 1,292,352.55, 1,783,647.06 and 776,393.68 is: 1,071,543.76
Step by Step Solution
- Step 1: Write the proportion equation
1,292,352.55 : 1,783,647.06 = 776,393.68 : x - Step 2: Convert to fraction form
1,292,352.55/1,783,647.06 = 776,393.68/x - Step 3: Cross multiply
1,292,352.55x = 1,783,647.06 × 776,393.68 - Step 4: Simplify right side
1,292,352.55x = 1,384,812,304,734.58 - Step 5: Solve for x
x = 1,384,812,304,734.58/1,292,352.55 - Step 6: Final answer
x = 1,071,543.76
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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.