Finding the Fourth Proportional to 1,296,652.86, 1,790,329.23 and 838,038.96
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Solution
The fourth proportional to 1,296,652.86, 1,790,329.23 and 838,038.96 is: 1,157,106.65
Step by Step Solution
- Step 1: Write the proportion equation
1,296,652.86 : 1,790,329.23 = 838,038.96 : x - Step 2: Convert to fraction form
1,296,652.86/1,790,329.23 = 838,038.96/x - Step 3: Cross multiply
1,296,652.86x = 1,790,329.23 × 838,038.96 - Step 4: Simplify right side
1,296,652.86x = 1,500,365,645,966.80 - Step 5: Solve for x
x = 1,500,365,645,966.80/1,296,652.86 - Step 6: Final answer
x = 1,157,106.65
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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.