Finding the Fourth Proportional to 1,209,678.12, 1,814,779.62 and 368,208
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Solution
The fourth proportional to 1,209,678.12, 1,814,779.62 and 368,208 is: 552,391.88
Step by Step Solution
- Step 1: Write the proportion equation
1,209,678.12 : 1,814,779.62 = 368,208 : x - Step 2: Convert to fraction form
1,209,678.12/1,814,779.62 = 368,208/x - Step 3: Cross multiply
1,209,678.12x = 1,814,779.62 × 368,208 - Step 4: Simplify right side
1,209,678.12x = 668,216,374,320.96 - Step 5: Solve for x
x = 668,216,374,320.96/1,209,678.12 - Step 6: Final answer
x = 552,391.88
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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.