Finding the Fourth Proportional to 1,326,861.84, 1,989,114.08 and 517,058.80
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Solution
The fourth proportional to 1,326,861.84, 1,989,114.08 and 517,058.80 is: 775,128.89
Step by Step Solution
- Step 1: Write the proportion equation
1,326,861.84 : 1,989,114.08 = 517,058.80 : x - Step 2: Convert to fraction form
1,326,861.84/1,989,114.08 = 517,058.80/x - Step 3: Cross multiply
1,326,861.84x = 1,989,114.08 × 517,058.80 - Step 4: Simplify right side
1,326,861.84x = 1,028,488,939,267.90 - Step 5: Solve for x
x = 1,028,488,939,267.90/1,326,861.84 - Step 6: Final answer
x = 775,128.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.