Finding the Fourth Proportional to 1,132,990.08, 1,563,174.12 and 642,878.52
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Solution
The fourth proportional to 1,132,990.08, 1,563,174.12 and 642,878.52 is: 886,972.52
Step by Step Solution
- Step 1: Write the proportion equation
1,132,990.08 : 1,563,174.12 = 642,878.52 : x - Step 2: Convert to fraction form
1,132,990.08/1,563,174.12 = 642,878.52/x - Step 3: Cross multiply
1,132,990.08x = 1,563,174.12 × 642,878.52 - Step 4: Simplify right side
1,132,990.08x = 1,004,931,064,767.90 - Step 5: Solve for x
x = 1,004,931,064,767.90/1,132,990.08 - Step 6: Final answer
x = 886,972.52
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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.