Finding the Fourth Proportional to 2,406,869.15, 3,321,505.43 and 1,319,117.31
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Solution
The fourth proportional to 2,406,869.15, 3,321,505.43 and 1,319,117.31 is: 1,820,396.14
Step by Step Solution
- Step 1: Write the proportion equation
2,406,869.15 : 3,321,505.43 = 1,319,117.31 : x - Step 2: Convert to fraction form
2,406,869.15/3,321,505.43 = 1,319,117.31/x - Step 3: Cross multiply
2,406,869.15x = 3,321,505.43 × 1,319,117.31 - Step 4: Simplify right side
2,406,869.15x = 4,381,455,301,376.41 - Step 5: Solve for x
x = 4,381,455,301,376.41/2,406,869.15 - Step 6: Final answer
x = 1,820,396.14
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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.