Finding the Fourth Proportional to 1,258,989.68, 1,737,351.36 and 715,123.76
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Solution
The fourth proportional to 1,258,989.68, 1,737,351.36 and 715,123.76 is: 986,839.89
Step by Step Solution
- Step 1: Write the proportion equation
1,258,989.68 : 1,737,351.36 = 715,123.76 : x - Step 2: Convert to fraction form
1,258,989.68/1,737,351.36 = 715,123.76/x - Step 3: Cross multiply
1,258,989.68x = 1,737,351.36 × 715,123.76 - Step 4: Simplify right side
1,258,989.68x = 1,242,421,237,004.31 - Step 5: Solve for x
x = 1,242,421,237,004.31/1,258,989.68 - Step 6: Final answer
x = 986,839.89
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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.