Finding the Fourth Proportional to 1,354,288.24, 1,868,845.80 and 781,294.24
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Solution
The fourth proportional to 1,354,288.24, 1,868,845.80 and 781,294.24 is: 1,078,144.53
Step by Step Solution
- Step 1: Write the proportion equation
1,354,288.24 : 1,868,845.80 = 781,294.24 : x - Step 2: Convert to fraction form
1,354,288.24/1,868,845.80 = 781,294.24/x - Step 3: Cross multiply
1,354,288.24x = 1,868,845.80 × 781,294.24 - Step 4: Simplify right side
1,354,288.24x = 1,460,118,458,988.19 - Step 5: Solve for x
x = 1,460,118,458,988.19/1,354,288.24 - Step 6: Final answer
x = 1,078,144.53
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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.