Finding the Fourth Proportional to 785,635.20, 1,084,317.84 and 463,326.48
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Solution
The fourth proportional to 785,635.20, 1,084,317.84 and 463,326.48 is: 639,473.85
Step by Step Solution
- Step 1: Write the proportion equation
785,635.20 : 1,084,317.84 = 463,326.48 : x - Step 2: Convert to fraction form
785,635.20/1,084,317.84 = 463,326.48/x - Step 3: Cross multiply
785,635.20x = 1,084,317.84 × 463,326.48 - Step 4: Simplify right side
785,635.20x = 502,393,168,008.40 - Step 5: Solve for x
x = 502,393,168,008.40/785,635.20 - Step 6: Final answer
x = 639,473.85
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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.