Finding the Fourth Proportional to 809,337.70, 1,214,006.55 and 436,089.70
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Solution
The fourth proportional to 809,337.70, 1,214,006.55 and 436,089.70 is: 654,134.55
Step by Step Solution
- Step 1: Write the proportion equation
809,337.70 : 1,214,006.55 = 436,089.70 : x - Step 2: Convert to fraction form
809,337.70/1,214,006.55 = 436,089.70/x - Step 3: Cross multiply
809,337.70x = 1,214,006.55 × 436,089.70 - Step 4: Simplify right side
809,337.70x = 529,415,752,187.54 - Step 5: Solve for x
x = 529,415,752,187.54/809,337.70 - Step 6: Final answer
x = 654,134.55
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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.