Finding the Fourth Proportional to 857,709.12, 1,182,863.76 and 535,448.88
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Solution
The fourth proportional to 857,709.12, 1,182,863.76 and 535,448.88 is: 738,435.75
Step by Step Solution
- Step 1: Write the proportion equation
857,709.12 : 1,182,863.76 = 535,448.88 : x - Step 2: Convert to fraction form
857,709.12/1,182,863.76 = 535,448.88/x - Step 3: Cross multiply
857,709.12x = 1,182,863.76 × 535,448.88 - Step 4: Simplify right side
857,709.12x = 633,363,075,484.59 - Step 5: Solve for x
x = 633,363,075,484.59/857,709.12 - Step 6: Final answer
x = 738,435.75
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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.