Finding the Fourth Proportional to 512,646.88, 768,909.12 and 138,699.04
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Solution
The fourth proportional to 512,646.88, 768,909.12 and 138,699.04 is: 208,032.00
Step by Step Solution
- Step 1: Write the proportion equation
512,646.88 : 768,909.12 = 138,699.04 : x - Step 2: Convert to fraction form
512,646.88/768,909.12 = 138,699.04/x - Step 3: Cross multiply
512,646.88x = 768,909.12 × 138,699.04 - Step 4: Simplify right side
512,646.88x = 106,646,956,791.25 - Step 5: Solve for x
x = 106,646,956,791.25/512,646.88 - Step 6: Final answer
x = 208,032.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.