Finding the Fourth Proportional to 1,298,828.48, 1,792,438.65 and 725,868.63
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Solution
The fourth proportional to 1,298,828.48, 1,792,438.65 and 725,868.63 is: 1,001,729.65
Step by Step Solution
- Step 1: Write the proportion equation
1,298,828.48 : 1,792,438.65 = 725,868.63 : x - Step 2: Convert to fraction form
1,298,828.48/1,792,438.65 = 725,868.63/x - Step 3: Cross multiply
1,298,828.48x = 1,792,438.65 × 725,868.63 - Step 4: Simplify right side
1,298,828.48x = 1,301,074,987,234.55 - Step 5: Solve for x
x = 1,301,074,987,234.55/1,298,828.48 - Step 6: Final answer
x = 1,001,729.65
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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.