Finding the Fourth Proportional to 1,272,697.26, 1,756,306.74 and 947,463.36
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Solution
The fourth proportional to 1,272,697.26, 1,756,306.74 and 947,463.36 is: 1,307,487.91
Step by Step Solution
- Step 1: Write the proportion equation
1,272,697.26 : 1,756,306.74 = 947,463.36 : x - Step 2: Convert to fraction form
1,272,697.26/1,756,306.74 = 947,463.36/x - Step 3: Cross multiply
1,272,697.26x = 1,756,306.74 × 947,463.36 - Step 4: Simplify right side
1,272,697.26x = 1,664,036,286,587.63 - Step 5: Solve for x
x = 1,664,036,286,587.63/1,272,697.26 - Step 6: Final answer
x = 1,307,487.91
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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.