Finding the Fourth Proportional to 1,436,507.71, 1,982,319.14 and 783,118.17
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Solution
The fourth proportional to 1,436,507.71, 1,982,319.14 and 783,118.17 is: 1,080,669.55
Step by Step Solution
- Step 1: Write the proportion equation
1,436,507.71 : 1,982,319.14 = 783,118.17 : x - Step 2: Convert to fraction form
1,436,507.71/1,982,319.14 = 783,118.17/x - Step 3: Cross multiply
1,436,507.71x = 1,982,319.14 × 783,118.17 - Step 4: Simplify right side
1,436,507.71x = 1,552,390,139,230.57 - Step 5: Solve for x
x = 1,552,390,139,230.57/1,436,507.71 - Step 6: Final answer
x = 1,080,669.55
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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.