Finding the Fourth Proportional to 555,789.99, 766,990.70 and 301,141.17
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Solution
The fourth proportional to 555,789.99, 766,990.70 and 301,141.17 is: 415,575.09
Step by Step Solution
- Step 1: Write the proportion equation
555,789.99 : 766,990.70 = 301,141.17 : x - Step 2: Convert to fraction form
555,789.99/766,990.70 = 301,141.17/x - Step 3: Cross multiply
555,789.99x = 766,990.70 × 301,141.17 - Step 4: Simplify right side
555,789.99x = 230,972,475,271.41 - Step 5: Solve for x
x = 230,972,475,271.41/555,789.99 - Step 6: Final answer
x = 415,575.09
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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.