Finding the Fourth Proportional to 639,276.21, 957,860.60 and 573,354.59
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Solution
The fourth proportional to 639,276.21, 957,860.60 and 573,354.59 is: 859,086.82
Step by Step Solution
- Step 1: Write the proportion equation
639,276.21 : 957,860.60 = 573,354.59 : x - Step 2: Convert to fraction form
639,276.21/957,860.60 = 573,354.59/x - Step 3: Cross multiply
639,276.21x = 957,860.60 × 573,354.59 - Step 4: Simplify right side
639,276.21x = 549,193,763,934.08 - Step 5: Solve for x
x = 549,193,763,934.08/639,276.21 - Step 6: Final answer
x = 859,086.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.