Finding the Fourth Proportional to 1,354,062.24, 1,868,533.92 and 781,068.24
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Solution
The fourth proportional to 1,354,062.24, 1,868,533.92 and 781,068.24 is: 1,077,832.66
Step by Step Solution
- Step 1: Write the proportion equation
1,354,062.24 : 1,868,533.92 = 781,068.24 : x - Step 2: Convert to fraction form
1,354,062.24/1,868,533.92 = 781,068.24/x - Step 3: Cross multiply
1,354,062.24x = 1,868,533.92 × 781,068.24 - Step 4: Simplify right side
1,354,062.24x = 1,459,452,500,274.70 - Step 5: Solve for x
x = 1,459,452,500,274.70/1,354,062.24 - Step 6: Final answer
x = 1,077,832.66
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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.