Finding the Fourth Proportional to 1,298,744.70, 1,791,107.19 and 815,354.88
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Solution
The fourth proportional to 1,298,744.70, 1,791,107.19 and 815,354.88 is: 1,124,461.17
Step by Step Solution
- Step 1: Write the proportion equation
1,298,744.70 : 1,791,107.19 = 815,354.88 : x - Step 2: Convert to fraction form
1,298,744.70/1,791,107.19 = 815,354.88/x - Step 3: Cross multiply
1,298,744.70x = 1,791,107.19 × 815,354.88 - Step 4: Simplify right side
1,298,744.70x = 1,460,387,987,969.59 - Step 5: Solve for x
x = 1,460,387,987,969.59/1,298,744.70 - Step 6: Final answer
x = 1,124,461.17
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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.