Finding the Fourth Proportional to 779,643.36, 1,075,725.36 and 457,336.80
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Solution
The fourth proportional to 779,643.36, 1,075,725.36 and 457,336.80 is: 631,017.74
Step by Step Solution
- Step 1: Write the proportion equation
779,643.36 : 1,075,725.36 = 457,336.80 : x - Step 2: Convert to fraction form
779,643.36/1,075,725.36 = 457,336.80/x - Step 3: Cross multiply
779,643.36x = 1,075,725.36 × 457,336.80 - Step 4: Simplify right side
779,643.36x = 491,968,793,821.25 - Step 5: Solve for x
x = 491,968,793,821.25/779,643.36 - Step 6: Final answer
x = 631,017.74
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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.