Finding the Fourth Proportional to 1,294,668.37, 1,786,852.80 and 778,943.53
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Solution
The fourth proportional to 1,294,668.37, 1,786,852.80 and 778,943.53 is: 1,075,068.68
Step by Step Solution
- Step 1: Write the proportion equation
1,294,668.37 : 1,786,852.80 = 778,943.53 : x - Step 2: Convert to fraction form
1,294,668.37/1,786,852.80 = 778,943.53/x - Step 3: Cross multiply
1,294,668.37x = 1,786,852.80 × 778,943.53 - Step 4: Simplify right side
1,294,668.37x = 1,391,857,414,793.40 - Step 5: Solve for x
x = 1,391,857,414,793.40/1,294,668.37 - Step 6: Final answer
x = 1,075,068.68
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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.