Finding the Fourth Proportional to 1,551,029.48, 2,140,389.98 and 862,686.53
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Solution
The fourth proportional to 1,551,029.48, 2,140,389.98 and 862,686.53 is: 1,190,490.33
Step by Step Solution
- Step 1: Write the proportion equation
1,551,029.48 : 2,140,389.98 = 862,686.53 : x - Step 2: Convert to fraction form
1,551,029.48/2,140,389.98 = 862,686.53/x - Step 3: Cross multiply
1,551,029.48x = 2,140,389.98 × 862,686.53 - Step 4: Simplify right side
1,551,029.48x = 1,846,485,604,692.97 - Step 5: Solve for x
x = 1,846,485,604,692.97/1,551,029.48 - Step 6: Final answer
x = 1,190,490.33
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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.