Finding the Fourth Proportional to 418,743.18, 577,813.14 and 283,072.32
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Solution
The fourth proportional to 418,743.18, 577,813.14 and 283,072.32 is: 390,604.35
Step by Step Solution
- Step 1: Write the proportion equation
418,743.18 : 577,813.14 = 283,072.32 : x - Step 2: Convert to fraction form
418,743.18/577,813.14 = 283,072.32/x - Step 3: Cross multiply
418,743.18x = 577,813.14 × 283,072.32 - Step 4: Simplify right side
418,743.18x = 163,562,906,066.29 - Step 5: Solve for x
x = 163,562,906,066.29/418,743.18 - Step 6: Final answer
x = 390,604.35
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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.