Finding the Fourth Proportional to 1,245,417.49, 1,868,128.05 and 346,861.81
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Solution
The fourth proportional to 1,245,417.49, 1,868,128.05 and 346,861.81 is: 520,293.22
Step by Step Solution
- Step 1: Write the proportion equation
1,245,417.49 : 1,868,128.05 = 346,861.81 : x - Step 2: Convert to fraction form
1,245,417.49/1,868,128.05 = 346,861.81/x - Step 3: Cross multiply
1,245,417.49x = 1,868,128.05 × 346,861.81 - Step 4: Simplify right side
1,245,417.49x = 647,982,267,394.13 - Step 5: Solve for x
x = 647,982,267,394.13/1,245,417.49 - Step 6: Final answer
x = 520,293.22
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.