Finding the Fourth Proportional to 654,299.34, 902,980.62 and 399,698.52
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Solution
The fourth proportional to 654,299.34, 902,980.62 and 399,698.52 is: 551,612.99
Step by Step Solution
- Step 1: Write the proportion equation
654,299.34 : 902,980.62 = 399,698.52 : x - Step 2: Convert to fraction form
654,299.34/902,980.62 = 399,698.52/x - Step 3: Cross multiply
654,299.34x = 902,980.62 × 399,698.52 - Step 4: Simplify right side
654,299.34x = 360,920,017,402.68 - Step 5: Solve for x
x = 360,920,017,402.68/654,299.34 - Step 6: Final answer
x = 551,612.99
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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.