Finding the Fourth Proportional to 1,124,661.21, 1,551,803.16 and 665,545.98
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Solution
The fourth proportional to 1,124,661.21, 1,551,803.16 and 665,545.98 is: 918,317.75
Step by Step Solution
- Step 1: Write the proportion equation
1,124,661.21 : 1,551,803.16 = 665,545.98 : x - Step 2: Convert to fraction form
1,124,661.21/1,551,803.16 = 665,545.98/x - Step 3: Cross multiply
1,124,661.21x = 1,551,803.16 × 665,545.98 - Step 4: Simplify right side
1,124,661.21x = 1,032,796,354,889.30 - Step 5: Solve for x
x = 1,032,796,354,889.30/1,124,661.21 - Step 6: Final answer
x = 918,317.75
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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.