Finding the Fourth Proportional to 413,637.70, 577,911.80 and 413,637.70
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Solution
The fourth proportional to 413,637.70, 577,911.80 and 413,637.70 is: 577,911.80
Step by Step Solution
- Step 1: Write the proportion equation
413,637.70 : 577,911.80 = 413,637.70 : x - Step 2: Convert to fraction form
413,637.70/577,911.80 = 413,637.70/x - Step 3: Cross multiply
413,637.70x = 577,911.80 × 413,637.70 - Step 4: Simplify right side
413,637.70x = 239,046,107,754.86 - Step 5: Solve for x
x = 239,046,107,754.86/413,637.70 - Step 6: Final answer
x = 577,911.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.