Finding the Fourth Proportional to 2,115,787.84, 2,919,776.70 and 1,148,909.56
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Solution
The fourth proportional to 2,115,787.84, 2,919,776.70 and 1,148,909.56 is: 1,585,489.48
Step by Step Solution
- Step 1: Write the proportion equation
2,115,787.84 : 2,919,776.70 = 1,148,909.56 : x - Step 2: Convert to fraction form
2,115,787.84/2,919,776.70 = 1,148,909.56/x - Step 3: Cross multiply
2,115,787.84x = 2,919,776.70 × 1,148,909.56 - Step 4: Simplify right side
2,115,787.84x = 3,354,559,363,695.25 - Step 5: Solve for x
x = 3,354,559,363,695.25/2,115,787.84 - Step 6: Final answer
x = 1,585,489.48
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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.