Finding the Fourth Proportional to 873,373.10, 1,205,241.86 and 486,187.80
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Solution
The fourth proportional to 873,373.10, 1,205,241.86 and 486,187.80 is: 670,931.92
Step by Step Solution
- Step 1: Write the proportion equation
873,373.10 : 1,205,241.86 = 486,187.80 : x - Step 2: Convert to fraction form
873,373.10/1,205,241.86 = 486,187.80/x - Step 3: Cross multiply
873,373.10x = 1,205,241.86 × 486,187.80 - Step 4: Simplify right side
873,373.10x = 585,973,885,950.37 - Step 5: Solve for x
x = 585,973,885,950.37/873,373.10 - Step 6: Final answer
x = 670,931.92
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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.