Finding the Fourth Proportional to 747,799.34, 1,119,910.80 and 431,296.70
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Solution
The fourth proportional to 747,799.34, 1,119,910.80 and 431,296.70 is: 645,913.69
Step by Step Solution
- Step 1: Write the proportion equation
747,799.34 : 1,119,910.80 = 431,296.70 : x - Step 2: Convert to fraction form
747,799.34/1,119,910.80 = 431,296.70/x - Step 3: Cross multiply
747,799.34x = 1,119,910.80 × 431,296.70 - Step 4: Simplify right side
747,799.34x = 483,013,832,334.36 - Step 5: Solve for x
x = 483,013,832,334.36/747,799.34 - Step 6: Final answer
x = 645,913.69
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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.