Finding the Fourth Proportional to 2,078,842.78, 3,118,263.99 and 782,238.79
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Solution
The fourth proportional to 2,078,842.78, 3,118,263.99 and 782,238.79 is: 1,173,358.12
Step by Step Solution
- Step 1: Write the proportion equation
2,078,842.78 : 3,118,263.99 = 782,238.79 : x - Step 2: Convert to fraction form
2,078,842.78/3,118,263.99 = 782,238.79/x - Step 3: Cross multiply
2,078,842.78x = 3,118,263.99 × 782,238.79 - Step 4: Simplify right side
2,078,842.78x = 2,439,227,050,438.17 - Step 5: Solve for x
x = 2,439,227,050,438.17/2,078,842.78 - Step 6: Final answer
x = 1,173,358.12
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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.