Finding the Fourth Proportional to 668,817.06, 923,285.07 and 423,924.18
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Solution
The fourth proportional to 668,817.06, 923,285.07 and 423,924.18 is: 585,216.63
Step by Step Solution
- Step 1: Write the proportion equation
668,817.06 : 923,285.07 = 423,924.18 : x - Step 2: Convert to fraction form
668,817.06/923,285.07 = 423,924.18/x - Step 3: Cross multiply
668,817.06x = 923,285.07 × 423,924.18 - Step 4: Simplify right side
668,817.06x = 391,402,866,205.99 - Step 5: Solve for x
x = 391,402,866,205.99/668,817.06 - Step 6: Final answer
x = 585,216.63
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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.