Finding the Fourth Proportional to 708,697.35, 1,063,544.16 and 640,938.62
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Solution
The fourth proportional to 708,697.35, 1,063,544.16 and 640,938.62 is: 961,858.43
Step by Step Solution
- Step 1: Write the proportion equation
708,697.35 : 1,063,544.16 = 640,938.62 : x - Step 2: Convert to fraction form
708,697.35/1,063,544.16 = 640,938.62/x - Step 3: Cross multiply
708,697.35x = 1,063,544.16 × 640,938.62 - Step 4: Simplify right side
708,697.35x = 681,666,520,901.74 - Step 5: Solve for x
x = 681,666,520,901.74/708,697.35 - Step 6: Final answer
x = 961,858.43
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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.