Finding the Fourth Proportional to 1,230,528.70, 1,845,793.05 and 1,112,430.70
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Solution
The fourth proportional to 1,230,528.70, 1,845,793.05 and 1,112,430.70 is: 1,668,646.05
Step by Step Solution
- Step 1: Write the proportion equation
1,230,528.70 : 1,845,793.05 = 1,112,430.70 : x - Step 2: Convert to fraction form
1,230,528.70/1,845,793.05 = 1,112,430.70/x - Step 3: Cross multiply
1,230,528.70x = 1,845,793.05 × 1,112,430.70 - Step 4: Simplify right side
1,230,528.70x = 2,053,316,854,666.64 - Step 5: Solve for x
x = 2,053,316,854,666.64/1,230,528.70 - Step 6: Final answer
x = 1,668,646.05
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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.