Finding the Fourth Proportional to 554,640.08, 765,400.81 and 299,990.66
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Solution
The fourth proportional to 554,640.08, 765,400.81 and 299,990.66 is: 413,985.76
Step by Step Solution
- Step 1: Write the proportion equation
554,640.08 : 765,400.81 = 299,990.66 : x - Step 2: Convert to fraction form
554,640.08/765,400.81 = 299,990.66/x - Step 3: Cross multiply
554,640.08x = 765,400.81 × 299,990.66 - Step 4: Simplify right side
554,640.08x = 229,613,092,656.48 - Step 5: Solve for x
x = 229,613,092,656.48/554,640.08 - Step 6: Final answer
x = 413,985.76
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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.