Finding the Fourth Proportional to 760,423.16, 1,049,646.30 and 438,261.68
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Solution
The fourth proportional to 760,423.16, 1,049,646.30 and 438,261.68 is: 604,952.31
Step by Step Solution
- Step 1: Write the proportion equation
760,423.16 : 1,049,646.30 = 438,261.68 : x - Step 2: Convert to fraction form
760,423.16/1,049,646.30 = 438,261.68/x - Step 3: Cross multiply
760,423.16x = 1,049,646.30 × 438,261.68 - Step 4: Simplify right side
760,423.16x = 460,019,750,843.78 - Step 5: Solve for x
x = 460,019,750,843.78/760,423.16 - Step 6: Final answer
x = 604,952.31
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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.