Finding the Fourth Proportional to 1,242,137.19, 1,863,101.90 and 343,590.02
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Solution
The fourth proportional to 1,242,137.19, 1,863,101.90 and 343,590.02 is: 515,356.29
Step by Step Solution
- Step 1: Write the proportion equation
1,242,137.19 : 1,863,101.90 = 343,590.02 : x - Step 2: Convert to fraction form
1,242,137.19/1,863,101.90 = 343,590.02/x - Step 3: Cross multiply
1,242,137.19x = 1,863,101.90 × 343,590.02 - Step 4: Simplify right side
1,242,137.19x = 640,143,209,767.53 - Step 5: Solve for x
x = 640,143,209,767.53/1,242,137.19 - Step 6: Final answer
x = 515,356.29
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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.