Finding the Fourth Proportional to 2,920,271.40, 4,029,931.94 and 1,631,129.96
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Solution
The fourth proportional to 2,920,271.40, 4,029,931.94 and 1,631,129.96 is: 2,250,935.55
Step by Step Solution
- Step 1: Write the proportion equation
2,920,271.40 : 4,029,931.94 = 1,631,129.96 : x - Step 2: Convert to fraction form
2,920,271.40/4,029,931.94 = 1,631,129.96/x - Step 3: Cross multiply
2,920,271.40x = 4,029,931.94 × 1,631,129.96 - Step 4: Simplify right side
2,920,271.40x = 6,573,342,724,094.92 - Step 5: Solve for x
x = 6,573,342,724,094.92/2,920,271.40 - Step 6: Final answer
x = 2,250,935.55
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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.