Finding the Fourth Proportional to 1,008,000.99, 1,391,040.75 and 555,291.99
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Solution
The fourth proportional to 1,008,000.99, 1,391,040.75 and 555,291.99 is: 766,302.61
Step by Step Solution
- Step 1: Write the proportion equation
1,008,000.99 : 1,391,040.75 = 555,291.99 : x - Step 2: Convert to fraction form
1,008,000.99/1,391,040.75 = 555,291.99/x - Step 3: Cross multiply
1,008,000.99x = 1,391,040.75 × 555,291.99 - Step 4: Simplify right side
1,008,000.99x = 772,433,786,238.59 - Step 5: Solve for x
x = 772,433,786,238.59/1,008,000.99 - Step 6: Final answer
x = 766,302.61
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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.