Finding the Fourth Proportional to 1,436,503.21, 1,982,312.93 and 783,113.67
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Solution
The fourth proportional to 1,436,503.21, 1,982,312.93 and 783,113.67 is: 1,080,663.34
Step by Step Solution
- Step 1: Write the proportion equation
1,436,503.21 : 1,982,312.93 = 783,113.67 : x - Step 2: Convert to fraction form
1,436,503.21/1,982,312.93 = 783,113.67/x - Step 3: Cross multiply
1,436,503.21x = 1,982,312.93 × 783,113.67 - Step 4: Simplify right side
1,436,503.21x = 1,552,376,355,658.54 - Step 5: Solve for x
x = 1,552,376,355,658.54/1,436,503.21 - Step 6: Final answer
x = 1,080,663.34
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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.