Finding the Fourth Proportional to 2,878,124.79, 4,319,899.74 and 2,117,647.56
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Solution
The fourth proportional to 2,878,124.79, 4,319,899.74 and 2,117,647.56 is: 3,178,467.17
Step by Step Solution
- Step 1: Write the proportion equation
2,878,124.79 : 4,319,899.74 = 2,117,647.56 : x - Step 2: Convert to fraction form
2,878,124.79/4,319,899.74 = 2,117,647.56/x - Step 3: Cross multiply
2,878,124.79x = 4,319,899.74 × 2,117,647.56 - Step 4: Simplify right side
2,878,124.79x = 9,148,025,143,855.64 - Step 5: Solve for x
x = 9,148,025,143,855.64/2,878,124.79 - Step 6: Final answer
x = 3,178,467.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.