Finding the Fourth Proportional to 664,488.68, 918,193.88 and 473,169.92
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Solution
The fourth proportional to 664,488.68, 918,193.88 and 473,169.92 is: 653,828.63
Step by Step Solution
- Step 1: Write the proportion equation
664,488.68 : 918,193.88 = 473,169.92 : x - Step 2: Convert to fraction form
664,488.68/918,193.88 = 473,169.92/x - Step 3: Cross multiply
664,488.68x = 918,193.88 × 473,169.92 - Step 4: Simplify right side
664,488.68x = 434,461,722,378.24 - Step 5: Solve for x
x = 434,461,722,378.24/664,488.68 - Step 6: Final answer
x = 653,828.63
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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.