Finding the Fourth Proportional to 418,394.79, 577,385.55 and 227,407.68
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Solution
The fourth proportional to 418,394.79, 577,385.55 and 227,407.68 is: 313,823.00
Step by Step Solution
- Step 1: Write the proportion equation
418,394.79 : 577,385.55 = 227,407.68 : x - Step 2: Convert to fraction form
418,394.79/577,385.55 = 227,407.68/x - Step 3: Cross multiply
418,394.79x = 577,385.55 × 227,407.68 - Step 4: Simplify right side
418,394.79x = 131,301,908,391.02 - Step 5: Solve for x
x = 131,301,908,391.02/418,394.79 - Step 6: Final answer
x = 313,823.00
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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.