Finding the Fourth Proportional to 2,106,237.30, 2,906,621.61 and 1,290,442.50
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Solution
The fourth proportional to 2,106,237.30, 2,906,621.61 and 1,290,442.50 is: 1,780,819.31
Step by Step Solution
- Step 1: Write the proportion equation
2,106,237.30 : 2,906,621.61 = 1,290,442.50 : x - Step 2: Convert to fraction form
2,106,237.30/2,906,621.61 = 1,290,442.50/x - Step 3: Cross multiply
2,106,237.30x = 2,906,621.61 × 1,290,442.50 - Step 4: Simplify right side
2,106,237.30x = 3,750,828,056,962.43 - Step 5: Solve for x
x = 3,750,828,056,962.43/2,106,237.30 - Step 6: Final answer
x = 1,780,819.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.