Finding the Fourth Proportional to 1,323,017.49, 1,982,028.99 and 781,658.44
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Solution
The fourth proportional to 1,323,017.49, 1,982,028.99 and 781,658.44 is: 1,171,012.25
Step by Step Solution
- Step 1: Write the proportion equation
1,323,017.49 : 1,982,028.99 = 781,658.44 : x - Step 2: Convert to fraction form
1,323,017.49/1,982,028.99 = 781,658.44/x - Step 3: Cross multiply
1,323,017.49x = 1,982,028.99 × 781,658.44 - Step 4: Simplify right side
1,323,017.49x = 1,549,269,688,358.18 - Step 5: Solve for x
x = 1,549,269,688,358.18/1,323,017.49 - Step 6: Final answer
x = 1,171,012.25
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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.