Finding the Fourth Proportional to 779,642.15, 1,075,923.68 and 457,584.53
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Solution
The fourth proportional to 779,642.15, 1,075,923.68 and 457,584.53 is: 631,476.92
Step by Step Solution
- Step 1: Write the proportion equation
779,642.15 : 1,075,923.68 = 457,584.53 : x - Step 2: Convert to fraction form
779,642.15/1,075,923.68 = 457,584.53/x - Step 3: Cross multiply
779,642.15x = 1,075,923.68 × 457,584.53 - Step 4: Simplify right side
779,642.15x = 492,326,023,761.13 - Step 5: Solve for x
x = 492,326,023,761.13/779,642.15 - Step 6: Final answer
x = 631,476.92
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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.