Finding the Fourth Proportional to 1,864,101.12, 2,572,735.68 and 1,139,366.40
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Solution
The fourth proportional to 1,864,101.12, 2,572,735.68 and 1,139,366.40 is: 1,572,494.41
Step by Step Solution
- Step 1: Write the proportion equation
1,864,101.12 : 2,572,735.68 = 1,139,366.40 : x - Step 2: Convert to fraction form
1,864,101.12/2,572,735.68 = 1,139,366.40/x - Step 3: Cross multiply
1,864,101.12x = 2,572,735.68 × 1,139,366.40 - Step 4: Simplify right side
1,864,101.12x = 2,931,288,589,873.15 - Step 5: Solve for x
x = 2,931,288,589,873.15/1,864,101.12 - Step 6: Final answer
x = 1,572,494.41
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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.