Finding the Fourth Proportional to 876,859.80, 1,315,289.70 and 344,203.80
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Solution
The fourth proportional to 876,859.80, 1,315,289.70 and 344,203.80 is: 516,305.70
Step by Step Solution
- Step 1: Write the proportion equation
876,859.80 : 1,315,289.70 = 344,203.80 : x - Step 2: Convert to fraction form
876,859.80/1,315,289.70 = 344,203.80/x - Step 3: Cross multiply
876,859.80x = 1,315,289.70 × 344,203.80 - Step 4: Simplify right side
876,859.80x = 452,727,712,840.86 - Step 5: Solve for x
x = 452,727,712,840.86/876,859.80 - Step 6: Final answer
x = 516,305.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.