Finding the Fourth Proportional to 2,141,355.66, 2,955,317.74 and 1,281,915.70
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Solution
The fourth proportional to 2,141,355.66, 2,955,317.74 and 1,281,915.70 is: 1,769,191.49
Step by Step Solution
- Step 1: Write the proportion equation
2,141,355.66 : 2,955,317.74 = 1,281,915.70 : x - Step 2: Convert to fraction form
2,141,355.66/2,955,317.74 = 1,281,915.70/x - Step 3: Cross multiply
2,141,355.66x = 2,955,317.74 × 1,281,915.70 - Step 4: Simplify right side
2,141,355.66x = 3,788,468,209,394.52 - Step 5: Solve for x
x = 3,788,468,209,394.52/2,141,355.66 - Step 6: Final answer
x = 1,769,191.49
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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.