Finding the Fourth Proportional to 1,148,308.92, 1,583,023.68 and 807,720.12
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Solution
The fourth proportional to 1,148,308.92, 1,583,023.68 and 807,720.12 is: 1,113,498.34
Step by Step Solution
- Step 1: Write the proportion equation
1,148,308.92 : 1,583,023.68 = 807,720.12 : x - Step 2: Convert to fraction form
1,148,308.92/1,583,023.68 = 807,720.12/x - Step 3: Cross multiply
1,148,308.92x = 1,583,023.68 × 807,720.12 - Step 4: Simplify right side
1,148,308.92x = 1,278,640,076,772.44 - Step 5: Solve for x
x = 1,278,640,076,772.44/1,148,308.92 - Step 6: Final answer
x = 1,113,498.34
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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.