Finding the Fourth Proportional to 418,417.29, 577,412.42 and 227,430.09
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Solution
The fourth proportional to 418,417.29, 577,412.42 and 227,430.09 is: 313,851.65
Step by Step Solution
- Step 1: Write the proportion equation
418,417.29 : 577,412.42 = 227,430.09 : x - Step 2: Convert to fraction form
418,417.29/577,412.42 = 227,430.09/x - Step 3: Cross multiply
418,417.29x = 577,412.42 × 227,430.09 - Step 4: Simplify right side
418,417.29x = 131,320,957,510.57 - Step 5: Solve for x
x = 131,320,957,510.57/418,417.29 - Step 6: Final answer
x = 313,851.65
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1.5x scale
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.