Finding the Fourth Proportional to 1,399,338.99, 1,931,351.85 and 876,292.43
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Solution
The fourth proportional to 1,399,338.99, 1,931,351.85 and 876,292.43 is: 1,209,448.90
Step by Step Solution
- Step 1: Write the proportion equation
1,399,338.99 : 1,931,351.85 = 876,292.43 : x - Step 2: Convert to fraction form
1,399,338.99/1,931,351.85 = 876,292.43/x - Step 3: Cross multiply
1,399,338.99x = 1,931,351.85 × 876,292.43 - Step 4: Simplify right side
1,399,338.99x = 1,692,428,996,164.74 - Step 5: Solve for x
x = 1,692,428,996,164.74/1,399,338.99 - Step 6: Final answer
x = 1,209,448.90
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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.