Finding the Fourth Proportional to 629,430.36, 868,602.96 and 342,952.80
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Solution
The fourth proportional to 629,430.36, 868,602.96 and 342,952.80 is: 473,268.90
Step by Step Solution
- Step 1: Write the proportion equation
629,430.36 : 868,602.96 = 342,952.80 : x - Step 2: Convert to fraction form
629,430.36/868,602.96 = 342,952.80/x - Step 3: Cross multiply
629,430.36x = 868,602.96 × 342,952.80 - Step 4: Simplify right side
629,430.36x = 297,889,817,220.29 - Step 5: Solve for x
x = 297,889,817,220.29/629,430.36 - Step 6: Final answer
x = 473,268.90
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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.