Finding the Fourth Proportional to 1,239,210.92, 1,858,905.23 and 518,827.70
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Solution
The fourth proportional to 1,239,210.92, 1,858,905.23 and 518,827.70 is: 778,278.75
Step by Step Solution
- Step 1: Write the proportion equation
1,239,210.92 : 1,858,905.23 = 518,827.70 : x - Step 2: Convert to fraction form
1,239,210.92/1,858,905.23 = 518,827.70/x - Step 3: Cross multiply
1,239,210.92x = 1,858,905.23 × 518,827.70 - Step 4: Simplify right side
1,239,210.92x = 964,451,529,970.40 - Step 5: Solve for x
x = 964,451,529,970.40/1,239,210.92 - Step 6: Final answer
x = 778,278.75
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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.