Finding the Fourth Proportional to 564,646.20, 779,213.07 and 310,013.79
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Solution
The fourth proportional to 564,646.20, 779,213.07 and 310,013.79 is: 427,819.75
Step by Step Solution
- Step 1: Write the proportion equation
564,646.20 : 779,213.07 = 310,013.79 : x - Step 2: Convert to fraction form
564,646.20/779,213.07 = 310,013.79/x - Step 3: Cross multiply
564,646.20x = 779,213.07 × 310,013.79 - Step 4: Simplify right side
564,646.20x = 241,566,797,048.24 - Step 5: Solve for x
x = 241,566,797,048.24/564,646.20 - Step 6: Final answer
x = 427,819.75
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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.