Finding the Fourth Proportional to 387,577.48, 580,855.92 and 207,642.06
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Solution
The fourth proportional to 387,577.48, 580,855.92 and 207,642.06 is: 311,189.70
Step by Step Solution
- Step 1: Write the proportion equation
387,577.48 : 580,855.92 = 207,642.06 : x - Step 2: Convert to fraction form
387,577.48/580,855.92 = 207,642.06/x - Step 3: Cross multiply
387,577.48x = 580,855.92 × 207,642.06 - Step 4: Simplify right side
387,577.48x = 120,610,119,792.00 - Step 5: Solve for x
x = 120,610,119,792.00/387,577.48 - Step 6: Final answer
x = 311,189.70
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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.