Finding the Fourth Proportional to 1,390,358.10, 2,083,787.55 and 1,232,894.10
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Solution
The fourth proportional to 1,390,358.10, 2,083,787.55 and 1,232,894.10 is: 1,847,789.70
Step by Step Solution
- Step 1: Write the proportion equation
1,390,358.10 : 2,083,787.55 = 1,232,894.10 : x - Step 2: Convert to fraction form
1,390,358.10/2,083,787.55 = 1,232,894.10/x - Step 3: Cross multiply
1,390,358.10x = 2,083,787.55 × 1,232,894.10 - Step 4: Simplify right side
1,390,358.10x = 2,569,089,376,048.46 - Step 5: Solve for x
x = 2,569,089,376,048.46/1,390,358.10 - Step 6: Final answer
x = 1,847,789.70
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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.