Finding the Fourth Proportional to 873,810.55, 1,205,781.67 and 486,596.71
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Solution
The fourth proportional to 873,810.55, 1,205,781.67 and 486,596.71 is: 671,460.64
Step by Step Solution
- Step 1: Write the proportion equation
873,810.55 : 1,205,781.67 = 486,596.71 : x - Step 2: Convert to fraction form
873,810.55/1,205,781.67 = 486,596.71/x - Step 3: Cross multiply
873,810.55x = 1,205,781.67 × 486,596.71 - Step 4: Simplify right side
873,810.55x = 586,729,393,600.31 - Step 5: Solve for x
x = 586,729,393,600.31/873,810.55 - Step 6: Final answer
x = 671,460.64
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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.