Finding the Fourth Proportional to 1,438,652.48, 1,985,043.96 and 826,686.98
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Solution
The fourth proportional to 1,438,652.48, 1,985,043.96 and 826,686.98 is: 1,140,657.68
Step by Step Solution
- Step 1: Write the proportion equation
1,438,652.48 : 1,985,043.96 = 826,686.98 : x - Step 2: Convert to fraction form
1,438,652.48/1,985,043.96 = 826,686.98/x - Step 3: Cross multiply
1,438,652.48x = 1,985,043.96 × 826,686.98 - Step 4: Simplify right side
1,438,652.48x = 1,641,009,996,459.64 - Step 5: Solve for x
x = 1,641,009,996,459.64/1,438,652.48 - Step 6: Final answer
x = 1,140,657.68
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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.