Finding the Fourth Proportional to 1,078,265.80, 1,617,398.70 and 868,313.80
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Solution
The fourth proportional to 1,078,265.80, 1,617,398.70 and 868,313.80 is: 1,302,470.70
Step by Step Solution
- Step 1: Write the proportion equation
1,078,265.80 : 1,617,398.70 = 868,313.80 : x - Step 2: Convert to fraction form
1,078,265.80/1,617,398.70 = 868,313.80/x - Step 3: Cross multiply
1,078,265.80x = 1,617,398.70 × 868,313.80 - Step 4: Simplify right side
1,078,265.80x = 1,404,409,611,312.06 - Step 5: Solve for x
x = 1,404,409,611,312.06/1,078,265.80 - Step 6: Final answer
x = 1,302,470.70
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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.