Finding the Fourth Proportional to 2,128,290.68, 3,189,663.66 and 864,641
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Solution
The fourth proportional to 2,128,290.68, 3,189,663.66 and 864,641 is: 1,295,835.20
Step by Step Solution
- Step 1: Write the proportion equation
2,128,290.68 : 3,189,663.66 = 864,641 : x - Step 2: Convert to fraction form
2,128,290.68/3,189,663.66 = 864,641/x - Step 3: Cross multiply
2,128,290.68x = 3,189,663.66 × 864,641 - Step 4: Simplify right side
2,128,290.68x = 2,757,913,976,646.06 - Step 5: Solve for x
x = 2,757,913,976,646.06/2,128,290.68 - Step 6: Final answer
x = 1,295,835.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.