Finding the Fourth Proportional to 1,259,304.70, 1,737,881.18 and 715,430.60
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Solution
The fourth proportional to 1,259,304.70, 1,737,881.18 and 715,430.60 is: 987,317.35
Step by Step Solution
- Step 1: Write the proportion equation
1,259,304.70 : 1,737,881.18 = 715,430.60 : x - Step 2: Convert to fraction form
1,259,304.70/1,737,881.18 = 715,430.60/x - Step 3: Cross multiply
1,259,304.70x = 1,737,881.18 × 715,430.60 - Step 4: Simplify right side
1,259,304.70x = 1,243,333,375,336.11 - Step 5: Solve for x
x = 1,243,333,375,336.11/1,259,304.70 - Step 6: Final answer
x = 987,317.35
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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.