Finding the Fourth Proportional to 815,698.88, 1,125,633.16 and 453,145.53
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Solution
The fourth proportional to 815,698.88, 1,125,633.16 and 453,145.53 is: 625,323.45
Step by Step Solution
- Step 1: Write the proportion equation
815,698.88 : 1,125,633.16 = 453,145.53 : x - Step 2: Convert to fraction form
815,698.88/1,125,633.16 = 453,145.53/x - Step 3: Cross multiply
815,698.88x = 1,125,633.16 × 453,145.53 - Step 4: Simplify right side
815,698.88x = 510,075,634,873.78 - Step 5: Solve for x
x = 510,075,634,873.78/815,698.88 - Step 6: Final answer
x = 625,323.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.